We were able to connect to the database server (which means your username and password is okay) but not able to select the %1$s database.
%2$s have permission to use the %1$s database?username_%1$s. Could that be the problem?If you don\'t know how to set up a database you should contact your host. If all else fails you may find help at the WordPress Support Forums.
'/*/WP_I18N_DB_SELECT_DB*/, $db, $this->dbuser ), 'db_select_fail' ); +If you don\'t know how to set up a database you should contact your host. If all else fails you may find help at the WordPress Support Forums.
' ), 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 mysqli_real_escape_string() or mysql_real_escape_string() * + * @see mysqli_real_escape_string() * @see mysql_real_escape_string() - * @see addslashes() * @since 2.8.0 * @access private * @@ -787,16 +1033,22 @@ class wpdb { * @return string escaped */ function _real_escape( $string ) { - if ( $this->dbh && $this->real_escape ) - return mysql_real_escape_string( $string, $this->dbh ); - else - return addslashes( $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 ); + _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 @@ -806,7 +1058,7 @@ class wpdb { */ 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 @@ -820,24 +1072,30 @@ class wpdb { } /** - * 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 ) { + public 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; @@ -851,22 +1109,24 @@ class wpdb { * @param string $string to escape * @return void */ - function escape_by_ref( &$string ) { - $string = $this->_real_escape( $string ); + public function escape_by_ref( &$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 (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. * @@ -891,10 +1151,15 @@ class wpdb { * @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 ) + 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' ); + } + $args = func_get_args(); array_shift( $args ); // If args were passed as an array (as in vsprintf), move them up @@ -902,11 +1167,38 @@ class wpdb { $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( '|(?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. * @@ -916,26 +1208,29 @@ class wpdb { * @param string $str The error to display * @return bool False if the showing of errors is disabled. */ - function print_error( $str = '' ) { + public function print_error( $str = '' ) { global $EZSQL_ERROR; - if ( !$str ) - $str = mysql_error( $this->dbh ); + if ( !$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(); + 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 ) @@ -973,7 +1268,7 @@ class wpdb { * @param bool $show Whether to show or hide errors * @return bool Old value for showing errors. */ - function show_errors( $show = true ) { + public function show_errors( $show = true ) { $errors = $this->show_errors; $this->show_errors = $show; return $errors; @@ -989,7 +1284,7 @@ class wpdb { * * @return bool Whether showing of errors was active */ - function hide_errors() { + public function hide_errors() { $show = $this->show_errors; $this->show_errors = false; return $show; @@ -1006,7 +1301,7 @@ class wpdb { * @param bool $suppress Optional. New value. Defaults to true. * @return bool Old value */ - function suppress_errors( $suppress = true ) { + public function suppress_errors( $suppress = true ) { $errors = $this->suppress_errors; $this->suppress_errors = (bool) $suppress; return $errors; @@ -1018,28 +1313,115 @@ class wpdb { * @since 0.71 * @return void */ - function flush() { + public function flush() { $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 ) ) { + if ( $this->use_mysqli ) { + mysqli_free_result( $this->result ); + } else { + mysql_free_result( $this->result ); + } + } } /** - * Connect to and select database + * Connect to and select database. + * + * If $allow_bail is false, the lack of database connection will need + * to be handled manually. * * @since 3.0.0 - */ - function db_connect() { - global $db_list, $global_db_list; + * @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 ) { + $this->dbh = mysqli_init(); + + // 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. + $port = null; + $socket = null; + $host = $this->dbhost; + $port_or_socket = strstr( $host, ':' ); + if ( ! empty( $port_or_socket ) ) { + $host = substr( $host, 0, strpos( $host, ':' ) ); + $port_or_socket = substr( $port_or_socket, 1 ); + if ( 0 !== strpos( $port_or_socket, '/' ) ) { + $port = intval( $port_or_socket ); + $maybe_socket = strstr( $port_or_socket, ':' ); + if ( ! empty( $maybe_socket ) ) { + $socket = substr( $maybe_socket, 1 ); + } + } else { + $socket = $port_or_socket; + } + } - if ( WP_DEBUG ) { - $this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, true ); + if ( WP_DEBUG ) { + mysqli_real_connect( $this->dbh, $host, $this->dbuser, $this->dbpassword, null, $port, $socket, $client_flags ); + } else { + @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; + } else if ( defined( 'WP_USE_EXT_MYSQL' ) && ! WP_USE_EXT_MYSQL ) { + $attempt_fallback = false; + } else if ( ! function_exists( 'mysql_connect' ) ) { + $attempt_fallback = false; + } + + if ( $attempt_fallback ) { + $this->use_mysqli = false; + $this->db_connect(); + } + } } else { - $this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, true ); + if ( WP_DEBUG ) { + $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, $new_link, $client_flags ); + } } - if ( !$this->dbh ) { - $this->bail( sprintf( /*WP_I18N_DB_CONN_ERROR*/" + 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(); + } + + $this->bail( sprintf( __( "This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at %s. This could mean your host's database server is down.
If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.
-"/*/WP_I18N_DB_CONN_ERROR*/, $this->dbhost ), 'db_connect_fail' ); +If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.
+" ), htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), 'db_connect_fail' ); - return; + return false; + } else if ( $this->dbh ) { + $this->has_connected = true; + $this->set_charset( $this->dbh ); + $this->set_sql_mode(); + $this->ready = true; + $this->select( $this->dbname, $this->dbh ); + + return true; + } + + return false; + } + + /** + * Check 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 after the + * the 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 True if the connection is up. + */ + public function check_connection( $allow_bail = true ) { + if ( $this->use_mysqli ) { + if ( @mysqli_ping( $this->dbh ) ) { + return true; + } + } else { + if ( @mysql_ping( $this->dbh ) ) { + return true; + } } - $this->set_charset( $this->dbh ); + $error_reporting = false; - $this->ready = true; + // 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 ); + } - $this->select( $this->dbname, $this->dbh ); + 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; + } + + // We weren't able to reconnect, so we better bail. + $this->bail( sprintf( ( " +This means that we lost contact with the database server at %s. This could mean your host's database server is down.
If you're unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.
+" ), htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), '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(); } /** @@ -1070,15 +1532,22 @@ class wpdb { * @param string $query Database query * @return int|false Number of rows affected/selected or false on error */ - function query( $query ) { + public 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(); // Log how the function was called @@ -1087,43 +1556,75 @@ class wpdb { // Keep track of the last query for debug.. $this->last_query = $query; - if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) - $this->timer_start(); + $this->_do_query( $query ); - $this->result = @mysql_query( $query, $this->dbh ); - $this->num_queries++; + // MySQL server has gone away, try to reconnect + $mysql_errno = 0; + if ( ! empty( $this->dbh ) ) { + if ( $this->use_mysqli ) { + $mysql_errno = mysqli_errno( $this->dbh ); + } else { + $mysql_errno = mysql_errno( $this->dbh ); + } + } - if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) - $this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); + 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->last_error = mysql_error( $this->dbh ) ) { + if ( $this->use_mysqli ) { + $this->last_error = mysqli_error( $this->dbh ); + } else { + $this->last_error = mysql_error( $this->dbh ); + } + + 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*(insert|delete|update|replace|alter) /i", $query ) ) { - $this->rows_affected = mysql_affected_rows( $this->dbh ); + 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) /i", $query ) ) { - $this->insert_id = mysql_insert_id($this->dbh); + 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 { - $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++; + if ( $this->use_mysqli ) { + while ( $row = @mysqli_fetch_object( $this->result ) ) { + $this->last_result[$num_rows] = $row; + $num_rows++; + } + } else { + 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; @@ -1133,6 +1634,33 @@ class wpdb { return $return_val; } + /** + * Internal function to perform the mysql_query() call. + * + * @since 3.9.0 + * + * @access private + * @see wpdb::query() + * + * @param string $query The query to run. + */ + private function _do_query( $query ) { + if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) { + $this->timer_start(); + } + + if ( $this->use_mysqli ) { + $this->result = @mysqli_query( $this->dbh, $query ); + } else { + $this->result = @mysql_query( $query, $this->dbh ); + } + $this->num_queries++; + + if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) { + $this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); + } + } + /** * Insert a row into a table. * @@ -1149,10 +1677,10 @@ class wpdb { * @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 ) { + public function insert( $table, $data, $format = null ) { return $this->_insert_replace_helper( $table, $data, $format, 'INSERT' ); } @@ -1172,10 +1700,10 @@ class wpdb { * @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 ) { + public function replace( $table, $data, $format = null ) { return $this->_insert_replace_helper( $table, $data, $format, 'REPLACE' ); } @@ -1191,14 +1719,16 @@ class wpdb { * @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(); @@ -1211,7 +1741,7 @@ class wpdb { $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 ) ); } @@ -1232,11 +1762,11 @@ class wpdb { * @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 ) { + public function update( $table, $data, $where, $format = null, $where_format = null ) { if ( ! is_array( $data ) || ! is_array( $where ) ) return false; @@ -1267,6 +1797,49 @@ class wpdb { return $this->query( $this->prepare( $sql, array_merge( array_values( $data ), array_values( $where ) ) ) ); } + /** + * Delete a row in the table + * + *
+ * wpdb::delete( 'table', array( 'ID' => 1 ) )
+ * wpdb::delete( 'table', array( 'ID' => 1 ), array( '%d' ) )
+ *
+ *
+ * @since 3.4.0
+ * @see wpdb::prepare()
+ * @see wpdb::$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".
+ * @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.
+ */
+ public function delete( $table, $where, $where_format = null ) {
+ if ( ! is_array( $where ) )
+ return false;
+
+ $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.
*
@@ -1277,11 +1850,11 @@ class wpdb {
* @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 ) {
+ public function get_var( $query = null, $x = 0, $y = 0 ) {
$this->func_call = "\$db->get_var(\"$query\", $x, $y)";
if ( $query )
$this->query( $query );
@@ -1306,9 +1879,9 @@ class wpdb {
* @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 ) {
+ public function get_row( $query = null, $output = OBJECT, $y = 0 ) {
$this->func_call = "\$db->get_row(\"$query\",$output,$y)";
if ( $query )
$this->query( $query );
@@ -1324,8 +1897,11 @@ class wpdb {
return $this->last_result[$y] ? get_object_vars( $this->last_result[$y] ) : null;
} elseif ( $output == ARRAY_N ) {
return $this->last_result[$y] ? array_values( get_object_vars( $this->last_result[$y] ) ) : null;
+ } elseif ( strtoupper( $output ) === OBJECT ) {
+ // Back compat for OBJECT being previously case insensitive.
+ return $this->last_result[$y] ? $this->last_result[$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" );
}
}
@@ -1342,7 +1918,7 @@ class wpdb {
* @param int $x Optional. Column to return. Indexed from 0.
* @return array Database query result. Array indexed from 0 by SQL result row number.
*/
- function get_col( $query = null , $x = 0 ) {
+ public function get_col( $query = null , $x = 0 ) {
if ( $query )
$this->query( $query );
@@ -1364,10 +1940,10 @@ class wpdb {
* @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 ) {
+ public function get_results( $query = null, $output = OBJECT ) {
$this->func_call = "\$db->get_results(\"$query\", $output)";
if ( $query )
@@ -1383,7 +1959,8 @@ class wpdb {
// 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;
}
@@ -1402,10 +1979,35 @@ class wpdb {
}
}
return $new_array;
+ } elseif ( strtoupper( $output ) === OBJECT ) {
+ // Back compat for OBJECT being previously case insensitive.
+ return $this->last_result;
}
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;
+
+ if ( $this->use_mysqli ) {
+ for ( $i = 0; $i < @mysqli_num_fields( $this->result ); $i++ ) {
+ $this->col_info[ $i ] = @mysqli_fetch_field( $this->result );
+ }
+ } else {
+ 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.
*
@@ -1415,7 +2017,9 @@ class wpdb {
* @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
* @return mixed Column Results
*/
- function get_col_info( $info_type = 'name', $col_offset = -1 ) {
+ public function get_col_info( $info_type = 'name', $col_offset = -1 ) {
+ $this->load_col_info();
+
if ( $this->col_info ) {
if ( $col_offset == -1 ) {
$i = 0;
@@ -1438,9 +2042,8 @@ class wpdb {
*
* @return true
*/
- function timer_start() {
- $mtime = explode( ' ', microtime() );
- $this->time_start = $mtime[1] + $mtime[0];
+ public function timer_start() {
+ $this->time_start = microtime( true );
return true;
}
@@ -1449,19 +2052,16 @@ class wpdb {
*
* @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;
+ 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 true
+ * Will not die if wpdb::$show_errors is false.
*
* @since 1.5.0
*
@@ -1469,7 +2069,7 @@ class wpdb {
* @param string $error_code Optional. A Computer readable string to identify the error.
* @return false|void
*/
- function bail( $message, $error_code = '500' ) {
+ public function bail( $message, $error_code = '500' ) {
if ( !$this->show_errors ) {
if ( class_exists( 'WP_Error' ) )
$this->error = new WP_Error($error_code, $message);
@@ -1489,7 +2089,7 @@ class wpdb {
*
* @return WP_Error
*/
- function check_database_version() {
+ 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, '<') )
@@ -1502,32 +2102,53 @@ class wpdb {
* 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() {
+ public 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 ) {
+ public function has_cap( $db_cap ) {
$version = $this->db_version();
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;
@@ -1543,17 +2164,8 @@ class wpdb {
*
* @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 );
+ public function get_caller() {
+ return wp_debug_backtrace_summary( __CLASS__ );
}
/**
@@ -1563,9 +2175,12 @@ class wpdb {
*
* @return false|string false on failure, version number on success
*/
- function db_version() {
- return preg_replace( '/[^0-9.].*/', '', mysql_get_server_info( $this->dbh ) );
+ public function db_version() {
+ if ( $this->use_mysqli ) {
+ $server_info = mysqli_get_server_info( $this->dbh );
+ } else {
+ $server_info = mysql_get_server_info( $this->dbh );
+ }
+ return preg_replace( '/[^0-9.].*/', '', $server_info );
}
}
-
-?>