*
* It is possible to replace this class with your own
* by setting the $wpdb global variable in wp-content/db.php
- * file with your class. You can name it wpdb also, since
- * this file will not be included, if the other file is
- * available.
+ * file to your class. The wpdb class will still be included,
+ * so you can extend it or simply use your own.
*
* @link http://codex.wordpress.org/Function_Reference/wpdb_Class
*
/**
* The last error during query.
*
- * @see get_last_error()
* @since 2.5.0
- * @access private
* @var string
*/
var $last_error = '';
/**
* Count of rows returned by previous query
*
- * @since 1.2.0
+ * @since 0.71
* @access private
* @var int
*/
var $insert_id = 0;
/**
- * Saved result of the last query made
+ * Last query made
*
- * @since 1.2.0
+ * @since 0.71
* @access private
* @var array
*/
/**
* Results of the last query made
*
- * @since 1.0.0
+ * @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;
+
/**
* Saved info on the table column
*
- * @since 1.2.0
- * @access private
+ * @since 0.71
+ * @access protected
* @var array
*/
- var $col_info;
+ protected $col_info;
/**
* Saved queries that were executed
* in a single database. The second reason is for possible
* security precautions.
*
- * @since 0.71
+ * @since 2.5.0
* @access private
* @var string
*/
/**
* Whether the database queries are ready to start executing.
*
- * @since 2.5.0
+ * @since 2.3.2
* @access private
* @var bool
*/
* 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::prepare()
+ * @see wpdb::insert()
+ * @see wpdb::update()
+ * @see wpdb::delete()
* @see wp_set_wpdb_vars()
* @access public
* @var array
var $collate;
/**
- * Whether to use mysql_real_escape_string
+ * Database Username
*
- * @since 2.8.0
- * @access public
- * @var bool
+ * @since 2.9.0
+ * @access protected
+ * @var string
*/
- var $real_escape = false;
+ protected $dbuser;
/**
- * Database Username
+ * Database Password
*
- * @since 2.9.0
- * @access private
+ * @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
*/
- var $dbuser;
+ protected $dbh;
/**
* A textual description of the last query/get_row/get_var call
var $func_call;
/**
- * Connects to the database server and selects a database
+ * Whether MySQL is used as the database engine.
*
- * PHP4 compatibility layer for calling the PHP5 constructor.
+ * 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.
*
- * @uses wpdb::__construct() Passes parameters and returns result
- * @since 0.71
- *
- * @param string $dbuser MySQL database user
- * @param string $dbpassword MySQL database password
- * @param string $dbname MySQL database name
- * @param string $dbhost MySQL database host
+ * @since 3.3.0
+ * @access public
+ * @var bool
*/
- function wpdb( $dbuser, $dbpassword, $dbname, $dbhost ) {
- return $this->__construct( $dbuser, $dbpassword, $dbname, $dbhost );
- }
+ public $is_mysql = null;
/**
* Connects to the database server and selects a database
* @param string $dbhost MySQL database host
*/
function __construct( $dbuser, $dbpassword, $dbname, $dbhost ) {
- register_shutdown_function( array( &$this, '__destruct' ) );
+ register_shutdown_function( array( $this, '__destruct' ) );
- if ( WP_DEBUG )
+ if ( WP_DEBUG && WP_DEBUG_DISPLAY )
$this->show_errors();
$this->init_charset();
return true;
}
+ /**
+ * PHP5 style magic getter, used to lazy-load expensive data.
+ *
+ * @since 3.5.0
+ *
+ * @param string $name The private member to get, and optionally process
+ * @return mixed The private member
+ */
+ function __get( $name ) {
+ if ( 'col_info' == $name )
+ $this->load_col_info();
+
+ return $this->$name;
+ }
+
+ /**
+ * Magic function, for backwards compatibility
+ *
+ * @since 3.5.0
+ *
+ * @param string $name The private member to set
+ * @param mixed $value The value to set
+ */
+ function __set( $name, $value ) {
+ $this->$name = $value;
+ }
+
+ /**
+ * Magic function, for backwards compatibility
+ *
+ * @since 3.5.0
+ *
+ * @param string $name The private member to check
+ *
+ * @return bool If the member is set or not
+ */
+ function __isset( $name ) {
+ return isset( $this->$name );
+ }
+
+ /**
+ * Magic function, for backwards compatibility
+ *
+ * @since 3.5.0
+ *
+ * @param string $name The private member to unset
+ */
+ function __unset( $name ) {
+ unset( $this->$name );
+ }
+
/**
* Set $this->charset and $this->collate
*
* @param string $charset The character set (optional)
* @param string $collate The collation (optional)
*/
- function set_charset($dbh, $charset = null, $collate = null) {
- if ( !isset($charset) )
+ function set_charset( $dbh, $charset = null, $collate = null ) {
+ if ( ! isset( $charset ) )
$charset = $this->charset;
- if ( !isset($collate) )
+ if ( ! isset( $collate ) )
$collate = $this->collate;
- if ( $this->has_cap( 'collation', $dbh ) && !empty( $charset ) ) {
- if ( function_exists( 'mysql_set_charset' ) && $this->has_cap( 'set_charset', $dbh ) ) {
+ if ( $this->has_cap( 'collation' ) && ! empty( $charset ) ) {
+ if ( function_exists( 'mysql_set_charset' ) && $this->has_cap( 'set_charset' ) ) {
mysql_set_charset( $charset, $dbh );
- $this->real_escape = true;
} else {
$query = $this->prepare( 'SET NAMES %s', $charset );
if ( ! empty( $collate ) )
* @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
*/
function set_prefix( $prefix, $set_table_names = true ) {
if ( preg_match( '|[^a-z0-9_]|i', $prefix ) )
- return new WP_Error('invalid_db_prefix', /*WP_I18N_DB_BAD_PREFIX*/'Invalid database prefix'/*/WP_I18N_DB_BAD_PREFIX*/);
+ return new WP_Error('invalid_db_prefix', 'Invalid database prefix' );
$old_prefix = is_multisite() ? '' : $prefix;
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
* Returns an array of WordPress tables.
*
* Also allows for the CUSTOM_USER_TABLE and CUSTOM_USER_META_TABLE to
- * override the WordPress users and usersmeta tables that would otherwise
+ * override the WordPress users and usermeta tables that would otherwise
* be determined by the prefix.
*
* The scope argument can take one of the following:
* @param resource $dbh Optional link identifier.
* @return null Always null.
*/
- function select( $db, $dbh = null) {
+ function select( $db, $dbh = null ) {
if ( is_null($dbh) )
$dbh = $this->dbh;
if ( !@mysql_select_db( $db, $dbh ) ) {
$this->ready = false;
- $this->bail( sprintf( /*WP_I18N_DB_SELECT_DB*/'<h1>Can’t select database</h1>
+ wp_load_translations_early();
+ $this->bail( sprintf( __( '<h1>Can’t select database</h1>
<p>We were able to connect to the database server (which means your username and password is okay) but not able to select the <code>%1$s</code> database.</p>
<ul>
<li>Are you sure it exists?</li>
<li>Does the user <code>%2$s</code> have permission to use the <code>%1$s</code> database?</li>
<li>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?</li>
</ul>
-<p>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="http://wordpress.org/support/">WordPress Support Forums</a>.</p>'/*/WP_I18N_DB_SELECT_DB*/, $db, $this->dbuser ), 'db_select_fail' );
+<p>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="http://wordpress.org/support/">WordPress Support Forums</a>.</p>' ), htmlspecialchars( $db, ENT_QUOTES ), htmlspecialchars( $this->dbuser, ENT_QUOTES ) ), 'db_select_fail' );
return;
}
}
/**
- * Weak escape, using addslashes()
+ * Do not use, deprecated.
+ *
+ * Use esc_sql() or wpdb::prepare() instead.
*
- * @see addslashes()
* @since 2.8.0
+ * @deprecated 3.6.0
+ * @see wpdb::prepare
+ * @see esc_sql()
* @access private
*
* @param string $string
* @return string
*/
function _weak_escape( $string ) {
+ if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) )
+ _deprecated_function( __METHOD__, '3.6', 'wpdb::prepare() or esc_sql()' );
return addslashes( $string );
}
/**
- * Real escape, using mysql_real_escape_string() or addslashes()
+ * Real escape, using mysql_real_escape_string()
*
* @see mysql_real_escape_string()
- * @see addslashes()
* @since 2.8.0
* @access private
*
* @return string escaped
*/
function _real_escape( $string ) {
- if ( $this->dbh && $this->real_escape )
+ if ( $this->dbh )
return mysql_real_escape_string( $string, $this->dbh );
- else
- return addslashes( $string );
+
+ $class = get_class( $this );
+ _doing_it_wrong( $class, "$class must set a database connection for use with escaping.", E_USER_NOTICE );
+ return addslashes( $string );
}
/**
* Escape data. Works on arrays.
*
- * @uses wpdb::_escape()
* @uses wpdb::_real_escape()
* @since 2.8.0
* @access private
*/
function _escape( $data ) {
if ( is_array( $data ) ) {
- foreach ( (array) $data as $k => $v ) {
+ foreach ( $data as $k => $v ) {
if ( is_array($v) )
$data[$k] = $this->_escape( $v );
else
}
/**
- * Escapes content for insertion into the database using addslashes(), for security.
+ * Do not use, deprecated.
*
- * Works on arrays.
+ * Use esc_sql() or wpdb::prepare() instead.
*
* @since 0.71
- * @param string|array $data to escape
- * @return string|array escaped as query safe string
+ * @deprecated 3.6.0
+ * @see wpdb::prepare()
+ * @see esc_sql()
+ *
+ * @param mixed $data
+ * @return mixed
*/
function escape( $data ) {
+ if ( func_num_args() === 1 && function_exists( '_deprecated_function' ) )
+ _deprecated_function( __METHOD__, '3.6', 'wpdb::prepare() or esc_sql()' );
if ( is_array( $data ) ) {
- foreach ( (array) $data as $k => $v ) {
+ foreach ( $data as $k => $v ) {
if ( is_array( $v ) )
- $data[$k] = $this->escape( $v );
+ $data[$k] = $this->escape( $v, 'recursive' );
else
- $data[$k] = $this->_weak_escape( $v );
+ $data[$k] = $this->_weak_escape( $v, 'internal' );
}
} else {
- $data = $this->_weak_escape( $data );
+ $data = $this->_weak_escape( $data, 'internal' );
}
return $data;
* @return void
*/
function escape_by_ref( &$string ) {
- $string = $this->_real_escape( $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 (decimal number)
+ * %d (integer)
+ * %f (float)
* %s (string)
* %% (literal percentage sign - no argument needed)
*
- * Both %d and %s are to be left unquoted in the query string and they need an argument passed for them.
+ * 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 (decimal number), %s (string).
+ * 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.
*
* @return null|false|string Sanitized query string, null if there is no query, false if there is an error and string
* if there was something to prepare
*/
- function prepare( $query = null ) { // ( $query, *$args )
+ function prepare( $query, $args ) {
if ( is_null( $query ) )
return;
$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' ) );
+ array_walk( $args, array( $this, 'escape_by_ref' ) );
return @vsprintf( $query, $args );
}
if ( $this->suppress_errors )
return false;
+ wp_load_translations_early();
+
if ( $caller = $this->get_caller() )
- $error_str = sprintf( /*WP_I18N_DB_QUERY_ERROR_FULL*/'WordPress database error %1$s for query %2$s made by %3$s'/*/WP_I18N_DB_QUERY_ERROR_FULL*/, $str, $this->last_query, $caller );
+ $error_str = sprintf( __( 'WordPress database error %1$s for query %2$s made by %3$s' ), $str, $this->last_query, $caller );
else
- $error_str = sprintf( /*WP_I18N_DB_QUERY_ERROR*/'WordPress database error %1$s for query %2$s'/*/WP_I18N_DB_QUERY_ERROR*/, $str, $this->last_query );
+ $error_str = sprintf( __( 'WordPress database error %1$s for query %2$s' ), $str, $this->last_query );
- if ( function_exists( 'error_log' )
- && ( $log_file = @ini_get( 'error_log' ) )
- && ( 'syslog' == $log_file || @is_writable( $log_file ) )
- )
- @error_log( $error_str );
+ error_log( $error_str );
// Are we showing errors?
if ( ! $this->show_errors )
$this->last_result = array();
$this->col_info = null;
$this->last_query = null;
+ $this->rows_affected = $this->num_rows = 0;
+ $this->last_error = '';
+
+ if ( is_resource( $this->result ) )
+ mysql_free_result( $this->result );
}
/**
* @since 3.0.0
*/
function db_connect() {
- global $db_list, $global_db_list;
+
+ $this->is_mysql = true;
+
+ $new_link = defined( 'MYSQL_NEW_LINK' ) ? MYSQL_NEW_LINK : true;
+ $client_flags = defined( 'MYSQL_CLIENT_FLAGS' ) ? MYSQL_CLIENT_FLAGS : 0;
if ( WP_DEBUG ) {
- $this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, true );
+ $this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
} else {
- $this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, true );
+ $this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, $new_link, $client_flags );
}
if ( !$this->dbh ) {
- $this->bail( sprintf( /*WP_I18N_DB_CONN_ERROR*/"
+ wp_load_translations_early();
+ $this->bail( sprintf( __( "
<h1>Error establishing a database connection</h1>
<p>This either means that the username and password information in your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>%s</code>. This could mean your host's database server is down.</p>
<ul>
<li>Are you sure that the database server is running?</li>
</ul>
<p>If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the <a href='http://wordpress.org/support/'>WordPress Support Forums</a>.</p>
-"/*/WP_I18N_DB_CONN_ERROR*/, $this->dbhost ), 'db_connect_fail' );
+" ), htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), 'db_connect_fail' );
return;
}
function query( $query ) {
if ( ! $this->ready )
return false;
-
- // some queries are made before the plugins have been loaded, and thus cannot be filtered with this method
- if ( function_exists( 'apply_filters' ) )
- $query = apply_filters( 'query', $query );
+ /**
+ * Filter 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 );
$return_val = 0;
$this->flush();
// If there is an error then take note of it..
if ( $this->last_error = mysql_error( $this->dbh ) ) {
+ // 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*(insert|delete|update|replace|alter) /i", $query ) ) {
+ 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 ) ) {
$this->rows_affected = mysql_affected_rows( $this->dbh );
// Take note of the insert_id
- if ( preg_match( "/^\\s*(insert|replace) /i", $query ) ) {
+ if ( preg_match( '/^\s*(insert|replace)\s/i', $query ) ) {
$this->insert_id = mysql_insert_id($this->dbh);
}
// Return number of rows affected
$return_val = $this->rows_affected;
} else {
- $i = 0;
- while ( $i < @mysql_num_fields( $this->result ) ) {
- $this->col_info[$i] = @mysql_fetch_field( $this->result );
- $i++;
- }
$num_rows = 0;
while ( $row = @mysql_fetch_object( $this->result ) ) {
$this->last_result[$num_rows] = $row;
$num_rows++;
}
- @mysql_free_result( $this->result );
-
// Log number of rows the query returned
// and return number of rows selected
$this->num_rows = $num_rows;
* @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).
* @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', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.
+ * 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.
*/
function insert( $table, $data, $format = null ) {
* @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).
* @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', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.
+ * 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.
*/
function replace( $table, $data, $format = null ) {
* @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).
+ * @param array $data Data to insert (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped).
* @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', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.
+ * 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. What type of operation is this? INSERT or REPLACE. Defaults to INSERT.
* @return int|false The number of rows affected, or false on error.
*/
function _insert_replace_helper( $table, $data, $format = null, $type = 'INSERT' ) {
if ( ! in_array( strtoupper( $type ), array( 'REPLACE', 'INSERT' ) ) )
return false;
+ $this->insert_id = 0;
$formats = $format = (array) $format;
$fields = array_keys( $data );
$formatted_fields = array();
$form = '%s';
$formatted_fields[] = $form;
}
- $sql = "{$type} INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES ('" . implode( "','", $formatted_fields ) . "')";
+ $sql = "{$type} INTO `$table` (`" . implode( '`,`', $fields ) . "`) VALUES (" . implode( ",", $formatted_fields ) . ")";
return $this->query( $this->prepare( $sql, $data ) );
}
* @param array $data Data to update (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped).
* @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".
* @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', '%s' (decimal number, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.
- * @param array|string $format_where 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', '%s' (decimal number, string). If omitted, all values in $where will be treated as strings.
+ * 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.
*/
function update( $table, $data, $where, $format = null, $where_format = null ) {
return $this->query( $this->prepare( $sql, array_merge( array_values( $data ), array_values( $where ) ) ) );
}
+ /**
+ * Delete a row in the table
+ *
+ * <code>
+ * wpdb::delete( 'table', array( 'ID' => 1 ) )
+ * wpdb::delete( 'table', array( 'ID' => 1 ), array( '%d' ) )
+ * </code>
+ *
+ * @since 3.4.0
+ * @see wpdb::prepare()
+ * @see wpdb::$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".
+ * @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 $where will be treated as strings unless otherwise specified in wpdb::$field_types.
+ * @return int|false The number of rows updated, or false on error.
+ */
+ function delete( $table, $where, $where_format = null ) {
+ if ( ! is_array( $where ) )
+ return false;
+
+ $bits = $wheres = array();
+
+ $where_formats = $where_format = (array) $where_format;
+
+ foreach ( array_keys( $where ) as $field ) {
+ if ( !empty( $where_format ) ) {
+ $form = ( $form = array_shift( $where_formats ) ) ? $form : $where_format[0];
+ } elseif ( isset( $this->field_types[ $field ] ) ) {
+ $form = $this->field_types[ $field ];
+ } else {
+ $form = '%s';
+ }
+
+ $wheres[] = "$field = $form";
+ }
+
+ $sql = "DELETE FROM $table WHERE " . implode( ' AND ', $wheres );
+ return $this->query( $this->prepare( $sql, $where ) );
+ }
+
+
/**
* Retrieve one variable from the database.
*
* @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.
+ * @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
*/
function get_var( $query = null, $x = 0, $y = 0 ) {
* @param string $output Optional. one of ARRAY_A | ARRAY_N | OBJECT constants. Return an associative array (column => value, ...),
* a numerically indexed array (0 => value, ...) or an object ( ->column = value ), respectively.
* @param int $y Optional. Row to return. Indexed from 0.
- * @return mixed Database query result in format specifed by $output or null on failure
+ * @return mixed Database query result in format specified by $output or null on failure
*/
function get_row( $query = null, $output = OBJECT, $y = 0 ) {
$this->func_call = "\$db->get_row(\"$query\",$output,$y)";
} elseif ( $output == ARRAY_N ) {
return $this->last_result[$y] ? array_values( get_object_vars( $this->last_result[$y] ) ) : null;
} else {
- $this->print_error(/*WP_I18N_DB_GETROW_ERROR*/" \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N"/*/WP_I18N_DB_GETROW_ERROR*/);
+ $this->print_error( " \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N" );
}
}
* @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.
+ * 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 mixed Database query results
*/
function get_results( $query = null, $output = OBJECT ) {
// Return an array of row objects with keys from column 1
// (Duplicates are discarded)
foreach ( $this->last_result as $row ) {
- $key = array_shift( $var_by_ref = get_object_vars( $row ) );
+ $var_by_ref = get_object_vars( $row );
+ $key = array_shift( $var_by_ref );
if ( ! isset( $new_array[ $key ] ) )
$new_array[ $key ] = $row;
}
return null;
}
+ /**
+ * Load the column metadata from the last query.
+ *
+ * @since 3.5.0
+ *
+ * @access protected
+ */
+ protected function load_col_info() {
+ if ( $this->col_info )
+ return;
+
+ for ( $i = 0; $i < @mysql_num_fields( $this->result ); $i++ ) {
+ $this->col_info[ $i ] = @mysql_fetch_field( $this->result, $i );
+ }
+ }
+
/**
* Retrieve column metadata from the last query.
*
* @return mixed Column Results
*/
function get_col_info( $info_type = 'name', $col_offset = -1 ) {
+ $this->load_col_info();
+
if ( $this->col_info ) {
if ( $col_offset == -1 ) {
$i = 0;
* @return true
*/
function timer_start() {
- $mtime = explode( ' ', microtime() );
- $this->time_start = $mtime[1] + $mtime[0];
+ $this->time_start = microtime( true );
return true;
}
*
* @since 1.5.0
*
- * @return int Total time spent on the query, in milliseconds
+ * @return float Total time spent on the query, in seconds
*/
function timer_stop() {
- $mtime = explode( ' ', microtime() );
- $time_end = $mtime[1] + $mtime[0];
- $time_total = $time_end - $this->time_start;
- return $time_total;
+ return ( microtime( true ) - $this->time_start );
}
/**
* Wraps errors in a nice header and footer and dies.
*
- * Will not die if wpdb::$show_errors is true
+ * Will not die if wpdb::$show_errors is false.
*
* @since 1.5.0
*
* Called when WordPress is generating the table scheme.
*
* @since 2.5.0
+ * @deprecated 3.5.0
+ * @deprecated Use wpdb::has_cap( 'collation' )
*
* @return bool True if collation is supported, false if version does not
*/
function supports_collation() {
+ _deprecated_function( __FUNCTION__, '3.5', 'wpdb::has_cap( \'collation\' )' );
return $this->has_cap( 'collation' );
}
/**
- * Determine if a database supports a particular feature
+ * 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;
+ }
+
+ /**
+ * Determine if a database supports a particular feature.
*
* @since 2.7.0
- * @see wpdb::db_version()
+ * @see wpdb::db_version()
*
- * @param string $db_cap the feature
+ * @param string $db_cap The feature to check for.
* @return bool
*/
function has_cap( $db_cap ) {
switch ( strtolower( $db_cap ) ) {
case 'collation' : // @since 2.5.0
- case 'group_concat' : // @since 2.7
- case 'subqueries' : // @since 2.7
+ case 'group_concat' : // @since 2.7.0
+ case 'subqueries' : // @since 2.7.0
return version_compare( $version, '4.1', '>=' );
case 'set_charset' :
- return version_compare($version, '5.0.7', '>=');
+ return version_compare( $version, '5.0.7', '>=' );
};
return false;
* @return string The name of the calling function
*/
function get_caller() {
- $trace = array_reverse( debug_backtrace() );
- $caller = array();
-
- foreach ( $trace as $call ) {
- if ( isset( $call['class'] ) && __CLASS__ == $call['class'] )
- continue; // Filter out wpdb calls.
- $caller[] = isset( $call['class'] ) ? "{$call['class']}->{$call['function']}" : $call['function'];
- }
-
- return join( ', ', $caller );
+ return wp_debug_backtrace_summary( __CLASS__ );
}
/**
return preg_replace( '/[^0-9.].*/', '', mysql_get_server_info( $this->dbh ) );
}
}
-
-?>