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mysql-db.php
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mysql-db.php
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<?php
/**
* WordPress DB Class
*
* Original code from {@link http://php.justinvincent.com Justin Vincent ([email protected])}
*
* @package WordPress
* @subpackage Database
* @since 0.71
*/
/**
* @since 0.71
*/
define( 'ARRAY_A', 'ARRAY_A' );
/**
* @since 0.71
*/
define( 'ARRAY_N', 'ARRAY_N' );
/**
* WordPress Database Access Abstraction Object
*
* 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://codex.wordpress.org/Function_Reference/wpdb_Class
*
* @package WordPress
* @subpackage Database
* @since 0.71
*/
class wpdb {
/**
* Whether to show SQL/DB errors.
*
* Default behavior is to show errors if both WP_DEBUG and WP_DEBUG_DISPLAY
* evaluated to true.
*
* @since 0.71
* @access private
* @var bool
*/
var $show_errors = false;
/**
* Whether to suppress errors during the DB bootstrapping.
*
* @access private
* @since 2.5.0
* @var bool
*/
var $suppress_errors = false;
/**
* The last error during query.
*
* @since 2.5.0
* @var string
*/
public $last_error = '';
/**
* Amount of queries made
*
* @since 1.2.0
* @access public
* @var int
*/
public $num_queries = 0;
/**
* Count of rows returned by previous query
*
* @since 0.71
* @access public
* @var int
*/
public $num_rows = 0;
/**
* Count of affected rows by previous query
*
* @since 0.71
* @access private
* @var int
*/
var $rows_affected = 0;
/**
* The ID generated for an AUTO_INCREMENT column by the previous query (usually INSERT).
*
* @since 0.71
* @access public
* @var int
*/
public $insert_id = 0;
/**
* Last query made
*
* @since 0.71
* @access private
* @var array
*/
var $last_query;
/**
* Results of the last query made
*
* @since 0.71
* @access private
* @var array|null
*/
var $last_result;
/**
* MySQL result, which is either a resource or boolean.
*
* @since 0.71
* @access protected
* @var mixed
*/
protected $result;
/**
* Cached column info, for sanity checking data before inserting
*
* @since 4.2.0
* @access protected
* @var array
*/
protected $col_meta = array();
/**
* Calculated character sets on tables
*
* @since 4.2.0
* @access protected
* @var array
*/
protected $table_charset = array();
/**
* Whether text fields in the current query need to be sanity checked.
*
* @since 4.2.0
* @access protected
* @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
* @access private
* @see wpdb::check_safe_collation()
* @var bool
*/
private $checking_collation = false;
/**
* Saved info on the table column
*
* @since 0.71
* @access protected
* @var array
*/
protected $col_info;
/**
* Saved queries that were executed
*
* @since 1.5.0
* @access private
* @var array
*/
var $queries;
/**
* The number of times to retry reconnecting before dying.
*
* @since 3.9.0
* @access protected
* @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
* @access public
* @var string
*/
public $prefix = '';
public $options = 'ewwwio_options';
/**
* WordPress base table prefix.
*
* @since 3.0.0
* @access public
* @var string
*/
public $base_prefix;
/**
* Whether the database queries are ready to start executing.
*
* @since 2.3.2
* @access private
* @var bool
*/
var $ready = false;
/**
* 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()
* @access public
* @var array
*/
public $field_types = array();
/**
* Database table columns charset
*
* @since 2.2.0
* @access public
* @var string
*/
public $charset;
/**
* Database table columns collate
*
* @since 2.2.0
* @access public
* @var string
*/
public $collate;
/**
* Database Username
*
* @since 2.9.0
* @access protected
* @var string
*/
protected $dbuser;
/**
* Database Password
*
* @since 3.1.0
* @access protected
* @var string
*/
protected $dbpassword;
/**
* Database Name
*
* @since 3.1.0
* @access protected
* @var string
*/
protected $dbname;
/**
* Database Host
*
* @since 3.1.0
* @access protected
* @var string
*/
protected $dbhost;
/**
* Database Handle
*
* @since 0.71
* @access protected
* @var string
*/
protected $dbh;
/**
* A textual description of the last query/get_row/get_var call
*
* @since 3.0.0
* @access public
* @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
* @access public
* @var bool
*/
public $is_mysql = true;
/**
* A list of incompatible SQL modes.
*
* @since 3.9.0
* @access protected
* @var array
*/
protected $incompatible_modes = array( 'NO_ZERO_DATE', 'ONLY_FULL_GROUP_BY',
'STRICT_TRANS_TABLES', 'STRICT_ALL_TABLES', 'TRADITIONAL' );
/**
* Whether to use mysqli over mysql.
*
* @since 3.9.0
* @access private
* @var bool
*/
private $use_mysqli = true;
/**
* Whether we've managed to successfully connect at some point
*
* @since 3.9.0
* @access private
* @var bool
*/
private $has_connected = false;
/**
* Connects to the database server and selects a database
*
* PHP5 style constructor for compatibility with PHP5. Does
* the actual setting up of the class properties and connection
* to the database.
*
* @link https://core.trac.wordpress.org/ticket/3354
* @since 2.0.8
*
* @global string $wp_version
*
* @param string $dbuser MySQL database user
* @param string $dbpassword MySQL database password
* @param string $dbname MySQL database name
* @param string $dbhost MySQL database host
*/
public function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
register_shutdown_function( array( $this, '__destruct' ) );
$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();
}
/**
* PHP5 style destructor and will run when database object is destroyed.
*
* @see wpdb::__construct()
* @since 2.0.8
* @return true
*/
public function __destruct() {
return true;
}
/**
* Set $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
* @access public
*
* @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.
*/
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 ) {
// _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 resource $dbh The resource given by 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 );
}
}
}
}
/**
* Change the current SQL mode, and ensure 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.
*/
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 ) ) {
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.
* @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
* @access public
*
* @param int $blog_id
* @param int $site_id Optional.
* @return int previous blog id
*/
/* public function set_blog_id( $blog_id, $site_id = 0 ) {
if ( ! empty( $site_id ) )
$this->siteid = $site_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 $this->base_prefix;
}
}*/
/**
* Returns an array of WordPress tables.
*
* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to
* override the WordPress users and usermeta tables that would otherwise
* be determined by the prefix.
*
* The scope argument can take one of the following:
*
* 'all' - returns 'all' and 'global' tables. No old tables are returned.
* 'blog' - returns the blog-level tables for the queried blog.
* 'global' - returns the global tables for the installation, returning multisite tables only if running multisite.
* 'ms_global' - returns the multisite global tables, regardless if current installation is multisite.
* 'old' - returns tables which are deprecated.
*
* @since 3.0.0
* @uses wpdb::$tables
* @uses wpdb::$old_tables
* @uses wpdb::$global_tables
* @uses wpdb::$ms_global_tables
*
* @param string $scope Optional. Can be all, global, ms_global, blog, or old tables. Defaults to all.
* @param bool $prefix Optional. Whether to include table prefixes. Default true. If blog
* prefix is requested, then the custom users and usermeta tables will be mapped.
* @param int $blog_id Optional. The blog_id to prefix. Defaults to wpdb::$blogid. Used only when prefix is requested.
* @return array 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;
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 ) )
$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 database connection.
*
* The database name will be changed based on the current database
* connection. On failure, the execution will bail and display an DB error.
*
* @since 0.71
*
* @param string $db MySQL database name
* @param resource|null $dbh Optional link identifier.
*/
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>' . __( 'Can’t select database' ) . "</h1>\n";
$message .= '<p>' . sprintf(
/* translators: %s: database name */
__( 'We were able to connect to the database server (which means your username and password is okay) but not able to select the %s database.' ),
'<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 don’t 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/' )
) . "</p>\n";
$this->bail( $message, 'db_select_fail' );
}
}
}
/**
* Real escape, using mysqli_real_escape_string() or mysql_real_escape_string()
*
* @see mysqli_real_escape_string()
* @see mysql_real_escape_string()
* @since 2.8.0
* @access private
*
* @param string $string to escape
* @return string escaped
*/
function _real_escape( $string ) {
if ( $this->dbh ) {
if ( $this->use_mysqli ) {
return mysqli_real_escape_string( $this->dbh, $string );
} else {
return mysql_real_escape_string( $string, $this->dbh );
}
}
$class = get_class( $this );
if ( function_exists( '__' ) ) {
/* 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' );
} else {
_doing_it_wrong( $class, sprintf( '%s must set a database connection for use with escaping.', $class ), '3.6.0' );
}
return addslashes( $string );
}
/**
* Escape data. Works on arrays.
*
* @uses wpdb::_real_escape()
* @since 2.8.0
* @access private
*
* @param string|array $data
* @return string|array escaped
*/
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;
}
/**
* Escapes content by reference for insertion into the database, for security
*
* @uses wpdb::_real_escape()
*
* @since 2.3.0
*
* @param 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 directives can be used in the query format string:
* %d (integer)
* %f (float)
* %s (string)
* %% (literal percentage sign - no argument needed)
*
* All of %d, %f, and %s are to be left unquoted in the query string and they need an argument passed for them.
* Literals (%) as parts of the query must be properly written as %%.
*
* This function only supports a small subset of the sprintf syntax; it only supports %d (integer), %f (float), and %s (string).
* Does not support sign, padding, alignment, width or precision specifiers.
* Does not support argument numbering/swapping.
*
* May be called like {@link https://secure.php.net/sprintf sprintf()} or like {@link https://secure.php.net/vsprintf vsprintf()}.
*
* Both %d and %s should be left unquoted in the query string.
*
* wpdb::prepare( "SELECT * FROM `table` WHERE `column` = %s AND `field` = %d", 'foo', 1337 )
* wpdb::prepare( "SELECT DATE_FORMAT(`field`, '%%c') FROM `table` WHERE `column` = %s", 'foo' );
*
* @link https://secure.php.net/sprintf Description of syntax.
* @since 2.3.0
*
* @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 like
* {@link https://secure.php.net/vsprintf vsprintf()}, or the first variable to substitute into the query's placeholders if
* being called like {@link https://secure.php.net/sprintf sprintf()}.
* @param mixed $args,... further variables to substitute into the query's placeholders if being called like
* {@link https://secure.php.net/sprintf sprintf()}.
* @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 ) {
_doing_it_wrong( 'wpdb::prepare', sprintf( __( 'The query argument of %s must have a placeholder.' ), 'wpdb::prepare()' ), '3.9.0' );
}
$args = func_get_args();
array_shift( $args );
// If args were passed as an array (as in vsprintf), move them up
if ( isset( $args[0] ) && is_array($args[0]) )
$args = $args[0];
$query = str_replace( "'%s'", '%s', $query ); // in case someone mistakenly already singlequoted it
$query = str_replace( '"%s"', '%s', $query ); // doublequote unquoting
$query = preg_replace( '|(?<!%)%f|' , '%F', $query ); // Force floats to be locale unaware
$query = preg_replace( '|(?<!%)%s|', "'%s'", $query ); // quote the strings, avoiding escaped strings like %%s
array_walk( $args, array( $this, 'escape_by_ref' ) );
return @vsprintf( $query, $args );
}
/**
* First half of escaping for LIKE special characters % and _ before preparing for MySQL.
*
* 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
* @access public
*
* @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 real_escape next.
*/
public function esc_like( $text ) {
return addcslashes( $text, '_%\\' );
}
/**
* Print 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 false|void False if the showing of errors is 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;
//wp_load_translations_early();
$error_str = sprintf( __( 'WordPress database error %1$s for query %2$s' ), $str, $this->last_query );
error_log( $error_str );
// Are we showing errors?
if ( ! $this->show_errors )
return false;
// 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 );
}