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*/, $dbhost ), 'db_connect_fail' ); - return; - } - - $this->ready = true; - - if ( $this->has_cap( 'collation' ) && !empty( $this->charset ) ) { - if ( function_exists( 'mysql_set_charset' ) ) { - mysql_set_charset( $this->charset, $this->dbh ); - $this->real_escape = true; - } else { - $query = $this->prepare( 'SET NAMES %s', $this->charset ); - if ( ! empty( $this->collate ) ) - $query .= $this->prepare( ' COLLATE %s', $this->collate ); - $this->query( $query ); - } - } - - $this->select( $dbname, $this->dbh ); } /** - * PHP5 style destructor and will run when database object is destroyed. + * Sets the connection's character set. * - * @see wpdb::__construct() - * @since 2.0.8 - * @return bool true + * @since 3.1.0 + * + * @param resource $dbh The resource given by mysql_connect + * @param string $charset The character set (optional) + * @param string $collate The collation (optional) */ - function __destruct() { - return true; + function set_charset($dbh, $charset = null, $collate = null) { + if ( !isset($charset) ) + $charset = $this->charset; + if ( !isset($collate) ) + $collate = $this->collate; + if ( $this->has_cap( 'collation', $dbh ) && !empty( $charset ) ) { + if ( function_exists( 'mysql_set_charset' ) && $this->has_cap( 'set_charset', $dbh ) ) { + mysql_set_charset( $charset, $dbh ); + $this->real_escape = true; + } else { + $query = $this->prepare( 'SET NAMES %s', $charset ); + if ( ! empty( $collate ) ) + $query .= $this->prepare( ' COLLATE %s', $collate ); + mysql_query( $query, $dbh ); + } + } } /** @@ -566,6 +567,7 @@ class wpdb { * @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 ) { @@ -637,6 +639,7 @@ class wpdb { 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 @@ -650,7 +653,7 @@ class wpdb { * 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: @@ -736,21 +739,20 @@ class wpdb { * @param resource $dbh Optional link identifier. * @return null Always null. */ - function select( $db, $dbh = null) { - if ( is_null($dbh) ) + function select( $db, $dbh = null ) { + if ( is_null($dbh) ) $dbh = $this->dbh; if ( !@mysql_select_db( $db, $dbh ) ) { $this->ready = false; - $this->bail( sprintf( /*WP_I18N_DB_SELECT_DB*/' -We were able to connect to the database server (which means your username and password is okay) but not able to select the %1$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.
'/*/WP_I18N_DB_SELECT_DB*/, htmlspecialchars( $db, ENT_QUOTES ), htmlspecialchars( $this->dbuser, ENT_QUOTES ) ), 'db_select_fail' ); return; } } @@ -774,7 +776,7 @@ class wpdb { * * @see mysql_real_escape_string() * @see addslashes() - * @since 2.8 + * @since 2.8.0 * @access private * * @param string $string to escape @@ -790,9 +792,9 @@ class wpdb { /** * Escape data. Works on arrays. * - * @uses wpdb::_escape() - * @uses wpdb::_real_escape() - * @since 2.8 + * @uses wpdb::_escape() + * @uses wpdb::_real_escape() + * @since 2.8.0 * @access private * * @param string|array $data @@ -853,14 +855,15 @@ class wpdb { * 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. * @@ -995,7 +998,7 @@ class wpdb { * By default database errors are suppressed, with a simple * call to this function they can be enabled. * - * @since 2.5 + * @since 2.5.0 * @see wpdb::hide_errors() * @param bool $suppress Optional. New value. Defaults to true. * @return bool Old value @@ -1018,28 +1021,22 @@ class wpdb { $this->last_query = null; } - function db_connect( $query = "SELECT" ) { - global $db_list, $global_db_list; - if ( ! is_array( $db_list ) ) - return true; - - if ( $this->blogs != '' && preg_match("/(" . $this->blogs . "|" . $this->users . "|" . $this->usermeta . "|" . $this->site . "|" . $this->sitemeta . "|" . $this->sitecategories . ")/i",$query) ) { - $action = 'global'; - $details = $global_db_list[ mt_rand( 0, count( $global_db_list ) -1 ) ]; - $this->db_global = $details; - } elseif ( preg_match("/^\\s*(alter table|create|insert|delete|update|replace) /i",$query) ) { - $action = 'write'; - $details = $db_list[ 'write' ][ mt_rand( 0, count( $db_list[ 'write' ] ) -1 ) ]; - $this->db_write = $details; + /** + * Connect to and select database + * + * @since 3.0.0 + */ + function db_connect() { + + $this->is_mysql = true; + + if ( WP_DEBUG ) { + $this->dbh = mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, true ); } else { - $action = ''; - $details = $db_list[ 'read' ][ mt_rand( 0, count( $db_list[ 'read' ] ) -1 ) ]; - $this->db_read = $details; + $this->dbh = @mysql_connect( $this->dbhost, $this->dbuser, $this->dbpassword, true ); } - $dbhname = "dbh" . $action; - $this->$dbhname = @mysql_connect( $details[ 'db_host' ], $details[ 'db_user' ], $details[ 'db_password' ] ); - if (!$this->$dbhname ) { + if ( !$this->dbh ) { $this->bail( sprintf( /*WP_I18N_DB_CONN_ERROR*/"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*/, $details['db_host'] ), 'db_connect_fail' ); +"/*/WP_I18N_DB_CONN_ERROR*/, htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), 'db_connect_fail' ); + + return; } - $this->select( $details[ 'db_name' ], $this->$dbhname ); + + $this->set_charset( $this->dbh ); + + $this->ready = true; + + $this->select( $this->dbname, $this->dbh ); } /** @@ -1084,48 +1088,25 @@ class wpdb { if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) $this->timer_start(); - // use $this->dbh for read ops, and $this->dbhwrite for write ops - // use $this->dbhglobal for gloal table ops - unset( $dbh ); - if( defined( 'WP_USE_MULTIPLE_DB' ) && WP_USE_MULTIPLE_DB ) { - if( $this->blogs != '' && preg_match("/(" . $this->blogs . "|" . $this->users . "|" . $this->usermeta . "|" . $this->site . "|" . $this->sitemeta . "|" . $this->sitecategories . ")/i",$query) ) { - if( false == isset( $this->dbhglobal ) ) { - $this->db_connect( $query ); - } - $dbh =& $this->dbhglobal; - $this->last_db_used = "global"; - } elseif ( preg_match("/^\\s*(alter table|create|insert|delete|update|replace) /i",$query) ) { - if( false == isset( $this->dbhwrite ) ) { - $this->db_connect( $query ); - } - $dbh =& $this->dbhwrite; - $this->last_db_used = "write"; - } else { - $dbh =& $this->dbh; - $this->last_db_used = "read"; - } - } else { - $dbh =& $this->dbh; - $this->last_db_used = "other/read"; - } - - $this->result = @mysql_query( $query, $dbh ); + $this->result = @mysql_query( $query, $this->dbh ); $this->num_queries++; if ( defined( 'SAVEQUERIES' ) && SAVEQUERIES ) $this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() ); // If there is an error then take note of it.. - if ( $this->last_error = mysql_error( $dbh ) ) { + if ( $this->last_error = mysql_error( $this->dbh ) ) { $this->print_error(); return false; } - if ( preg_match( "/^\\s*(insert|delete|update|replace|alter) /i", $query ) ) { - $this->rows_affected = mysql_affected_rows( $dbh ); + if ( preg_match( '/^\s*(create|alter|truncate|drop) /i', $query ) ) { + $return_val = $this->result; + } elseif ( preg_match( '/^\s*(insert|delete|update|replace) /i', $query ) ) { + $this->rows_affected = mysql_affected_rows( $this->dbh ); // Take note of the insert_id - if ( preg_match( "/^\\s*(insert|replace) /i", $query ) ) { - $this->insert_id = mysql_insert_id($dbh); + if ( preg_match( '/^\s*(insert|replace) /i', $query ) ) { + $this->insert_id = mysql_insert_id($this->dbh); } // Return number of rows affected $return_val = $this->rows_affected; @@ -1168,7 +1149,7 @@ 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 ) { @@ -1191,7 +1172,7 @@ 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 ) { @@ -1212,7 +1193,8 @@ 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. + * @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' ) { @@ -1251,8 +1233,8 @@ 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 ) { @@ -1325,7 +1307,7 @@ 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 ) { $this->func_call = "\$db->get_row(\"$query\",$output,$y)"; @@ -1402,7 +1384,8 @@ 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; } @@ -1531,7 +1514,7 @@ class wpdb { /** * Determine if a database supports a particular feature * - * @since 2.7 + * @since 2.7.0 * @see wpdb::db_version() * * @param string $db_cap the feature @@ -1545,6 +1528,8 @@ class wpdb { case 'group_concat' : // @since 2.7 case 'subqueries' : // @since 2.7 return version_compare( $version, '4.1', '>=' ); + case 'set_charset' : + return version_compare($version, '5.0.7', '>='); }; return false; @@ -1576,6 +1561,8 @@ class wpdb { /** * The database version number. * + * @since 2.7.0 + * * @return false|string false on failure, version number on success */ function db_version() { @@ -1583,12 +1570,4 @@ class wpdb { } } -if ( ! isset( $wpdb ) ) { - /** - * WordPress Database Object, if it isn't set already in wp-content/db.php - * @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database - * @since 0.71 - */ - $wpdb = new wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST ); -} ?>