Warning: require(base_prefix; } } /** * Retur( $this->fi/version.php) [function.require]: failed to open stream: No such file or directory in ubstr( $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 ) { 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; } elseif ( defined( 'WP_USE_EXT_MYSQL' ) && ! WP_USE_EXT_MYSQL ) { $attempt_fallback = false; } elseif ( ! function_exists( 'mysql_connect' ) ) { $attempt_fallback = false; } if ( $attempt_fallback ) { $this->use_mysqli = false; $this->db_connect(); } } } else { 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 && $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( __( "

Error establishing a database connection

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.

" ), htmlspecialchars( $this->dbhost, ENT_QUOTES ) ), 'db_connect_fail' ); return false; } elseif ( $this->dbh ) { if ( ! $this->has_connected ) { $this->init_charset(); } $this->has_connected = true; $this->set_charset( $this->dbh ); $this->ready = true; $this->set_sql_mode(); $this->select( $this->dbname, $this->dbh ); return true; } return false; } /** * 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|void 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; } } $error_reporting = false; // Disable warnings, as we don't want to see a multitude of "unable to connect" messages if ( WP_DEBUG ) { $error_reporting = error_reporting(); error_reporting( $error_reporting & ~E_WARNING ); } for ( $tries = 1; $tries <= $this->reconnect_retries; $tries++ ) { // On the last try, re-enable warnings. We want to see a single instance of the // "unable to connect" message on the bail() screen, if it appears. if ( $this->reconnect_retries === $tries && WP_DEBUG ) { error_reporting( $error_reporting ); } if ( $this->db_connect( false ) ) { if ( $error_reporting ) { error_reporting( $error_reporting ); } return true; } sleep( 1 ); } // If template_redirect has already happened, it's too late for wp_die()/dead_db(). // Let's just return and hope for the best. if ( did_action( 'template_redirect' ) ) { return false; } if ( ! $allow_bail ) { return false; } // We weren't able to reconnect, so we better bail. $this->bail( sprintf( ( "

Error reconnecting to the database

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(); } /** * Perform a MySQL database query, using current database connection. * * More information can be found on the codex page. * * @since 0.71 * * @param string $query Database query * @return int|false Number of rows affected/selected or false on error */ public function query( $query ) { if ( ! $this->ready ) { $this->check_current_query = true; return false; } /** * 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 ); $this->flush(); // Log how the function was called $this->func_call = "\$db->query(\"$query\")"; // If we're writing to the database, make sure the query will write safely. if ( $this->check_current_query && ! $this->check_ascii( $query ) ) { $stripped_query = $this->strip_invalid_text_from_query( $query ); // strip_invalid_text_from_query() can perform queries, so we need // to flush again, just to make sure everything is clear. $this->flush(); if ( $stripped_query !== $query ) { $this->insert_id = 0; return false; } } $this->check_current_query = true; // Keep track of the last query for debug.. $this->last_query = $query; $this->_do_query( $query ); // 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 ( empty( $this->dbh ) || 2006 == $mysql_errno ) { if ( $this->check_connection() ) { $this->_do_query( $query ); } else { $this->insert_id = 0; return false; } } // If there is an error then take note of it.. if ( $this->use_mysqli ) { $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*(create|alter|truncate|drop)\s/i', $query ) ) { $return_val = $this->result; } elseif ( preg_match( '/^\s*(insert|delete|update|replace)\s/i', $query ) ) { if ( $this->use_mysqli ) { $this->rows_affected = mysqli_affected_rows( $this->dbh ); } else { $this->rows_affected = mysql_affected_rows( $this->dbh ); } // Take note of the insert_id if ( preg_match( '/^\s*(insert|replace)\s/i', $query ) ) { if ( $this->use_mysqli ) { $this->insert_id = mysqli_insert_id( $this->dbh ); } else { $this->insert_id = mysql_insert_id( $this->dbh ); } } // Return number of rows affected $return_val = $this->rows_affected; } else { $num_rows = 0; if ( $this->use_mysqli && $this->result instanceof mysqli_result ) { while ( $row = @mysqli_fetch_object( $this->result ) ) { $this->last_result[$num_rows] = $row; $num_rows++; } } elseif ( is_resource( $this->result ) ) { while ( $row = @mysql_fetch_object( $this->result ) ) { $this->last_result[$num_rows] = $row; $num_rows++; } } // Log number of rows the query returned // and return number of rows selected $this->num_rows = $num_rows; $return_val = $num_rows; } return $return_val; } /** * Internal function to perform the mysql_query() call. * * @since 3.9.0 * * @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() ); } } /** * Generates and returns a placeholder escape string for use in queries returned by ::prepare(). * * @since 4.8.3 * * @return string String to escape placeholders. */ public function placeholder_escape() { static $placeholder; if ( ! $placeholder ) { // If ext/hash is not present, compat.php's hash_hmac() does not support sha256. $algo = function_exists( 'hash' ) ? 'sha256' : 'sha1'; // Old WP installs may not have AUTH_SALT defined. $salt = defined( 'AUTH_SALT' ) && AUTH_SALT ? AUTH_SALT : (string) rand(); $placeholder = '{' . hash_hmac( $algo, uniqid( $salt, true ), $salt ) . '}'; } /* * Add the filter to remove the placeholder escaper. Uses priority 0, so that anything * else attached to this filter will recieve the query with the placeholder string removed. */ if ( ! has_filter( 'query', array( $this, 'remove_placeholder_escape' ) ) ) { add_filter( 'query', array( $this, 'remove_placeholder_escape' ), 0 ); } return $placeholder; } /** * Adds a placeholder escape string, to escape anything that resembles a printf() placeholder. * * @since 4.8.3 * * @param string $query The query to escape. * @return string The query with the placeholder escape string inserted where necessary. */ public function add_placeholder_escape( $query ) { /* * To prevent returning anything that even vaguely resembles a placeholder, * we clobber every % we can find. */ return str_replace( '%', $this->placeholder_escape(), $query ); } /** * Removes the placeholder escape strings from a query. * * @since 4.8.3 * * @param string $query The query from which the placeholder will be removed. * @return string The query with the placeholder removed. */ public function remove_placeholder_escape( $query ) { return str_replace( $this->placeholder_escape(), '%', $query ); } /** * Insert a row into a table. * * wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 'bar' ) ) * wpdb::insert( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) ) * * @since 2.5.0 * @see wpdb::prepare() * @see wpdb::$field_types * @see wp_set_wpdb_vars() * * @param string $table Table name * @param array $data Data to insert (in column => value pairs). * Both $data columns and $data values should be "raw" (neither should be SQL escaped). * @param array|string $format Optional. An array of formats to be mapped to each of the value in $data. * If string, that format will be used for all of the values in $data. * A format is one of '%d', '%f', '%s' (integer, float, string). * If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. * @return int|false The number of rows inserted, or false on error. */ public function insert( $table, $data, $format = null ) { return $this->_insert_replace_helper( $table, $data, $format, 'INSERT' ); } /** * Replace a row into a table. * * wpdb::replace( 'table', array( 'column' => 'foo', 'field' => 'bar' ) ) * wpdb::replace( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( '%s', '%d' ) ) * * @since 3.0.0 * @see wpdb::prepare() * @see wpdb::$field_types * @see wp_set_wpdb_vars() * * @param string $table Table name * @param array $data Data to insert (in column => value pairs). * Both $data columns and $data values should be "raw" (neither should be SQL escaped). * @param array|string $format Optional. An array of formats to be mapped to each of the value in $data. * If string, that format will be used for all of the values in $data. * A format is one of '%d', '%f', '%s' (integer, float, string). * If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. * @return int|false The number of rows affected, or false on error. */ public function replace( $table, $data, $format = null ) { return $this->_insert_replace_helper( $table, $data, $format, 'REPLACE' ); } /** * Helper function for insert and replace. * * Runs an insert or replace query based on $type argument. * * @access private * @since 3.0.0 * @see wpdb::prepare() * @see wpdb::$field_types * @see wp_set_wpdb_vars() * * @param string $table Table name * @param array $data Data to insert (in column => value pairs). * Both $data columns and $data values should be "raw" (neither should be SQL escaped). * @param array|string $format Optional. An array of formats to be mapped to each of the value in $data. * If string, that format will be used for all of the values in $data. * A format is one of '%d', '%f', '%s' (integer, float, string). * If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. * @param string $type Optional. 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' ) { $this->insert_id = 0; if ( ! in_array( strtoupper( $type ), array( 'REPLACE', 'INSERT' ) ) ) { return false; } $data = $this->process_fields( $table, $data, $format ); if ( false === $data ) { return false; } $formats = $values = array(); foreach ( $data as $value ) { $formats[] = $value['format']; $values[] = $value['value']; } $fields = '`' . implode( '`, `', array_keys( $data ) ) . '`'; $formats = implode( ', ', $formats ); $sql = "$type INTO `$table` ($fields) VALUES ($formats)"; $this->check_current_query = false; return $this->query( $this->prepare( $sql, $values ) ); } /** * Update a row in the table * * wpdb::update( 'table', array( 'column' => 'foo', 'field' => 'bar' ), array( 'ID' => 1 ) ) * wpdb::update( 'table', array( 'column' => 'foo', 'field' => 1337 ), array( 'ID' => 1 ), array( '%s', '%d' ), array( '%d' ) ) * * @since 2.5.0 * @see wpdb::prepare() * @see wpdb::$field_types * @see wp_set_wpdb_vars() * * @param string $table Table name * @param array $data Data to update (in column => value pairs). * Both $data columns and $data values should be "raw" (neither should be SQL escaped). * @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', '%f', '%s' (integer, float, string). * If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types. * @param array|string $where_format Optional. An array of formats to be mapped to each of the values in $where. * If string, that format will be used for all of the items in $where. * A format is one of '%d', '%f', '%s' (integer, float, string). * If omitted, all values in $where will be treated as strings. * @return int|false The number of rows updated, or false on error. */ public function update( $table, $data, $where, $format = null, $where_format = null ) { if ( ! is_array( $data ) || ! is_array( $where ) ) { return false; } $data = $this->process_fields( $table, $data, $format ); if ( false === $data ) { return false; } $where = $this->process_fields( $table, $where, $where_format ); if ( false === $where ) { return false; } $fields = $conditions = $values = array(); foreach ( $data as $field => $value ) { $fields[] = "`$field` = " . $value['format']; $values[] = $value['value']; } foreach ( $where as $field => $value ) { $conditions[] = "`$field` = " . $value['format']; $values[] = $value['value']; } $fields = implode( ', ', $fields ); $conditions = implode( ' AND ', $conditions ); $sql = "UPDATE `$table` SET $fields WHERE $conditions"; $this->check_current_query = false; return $this->query( $this->prepare( $sql, $values ) ); } /** * Delete a row in the table * * wpdb::delete( 'table', array( 'ID' => 1 ) ) * wpdb::delete( 'table', array( 'ID' => 1 ), array( '%d' ) ) * * @since 3.4.0 * @see wpdb::prepare() * @see wpdb::$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; } $where = $this->process_fields( $table, $where, $where_format ); if ( false === $where ) { return false; } $conditions = $values = array(); foreach ( $where as $field => $value ) { $conditions[] = "`$field` = " . $value['format']; $values[] = $value['value']; } $conditions = implode( ' AND ', $conditions ); $sql = "DELETE FROM `$table` WHERE $conditions"; $this->check_current_query = false; return $this->query( $this->prepare( $sql, $values ) ); } /** * Processes arrays of field/value pairs and field formats. * * This is a helper method for wpdb's CRUD methods, which take field/value * pairs for inserts, updates, and where clauses. This method first pairs * each value with a format. Then it determines the charset of that field, * using that to determine if any invalid text would be stripped. If text is * stripped, then field processing is rejected and the query fails. * * @since 4.2.0 * @access protected * * @param string $table Table name. * @param array $data Field/value pair. * @param mixed $format Format for each field. * @return array|false Returns an array of fields that contain paired values * and formats. Returns false for invalid values. */ protected function process_fields( $table, $data, $format ) { $data = $this->process_field_formats( $data, $format ); if ( false === $data ) { return false; } $data = $this->process_field_charsets( $data, $table ); if ( false === $data ) { return false; } $data = $this->process_field_lengths( $data, $table ); if ( false === $data ) { return false; } $converted_data = $this->strip_invalid_text( $data ); if ( $data !== $converted_data ) { return false; } return $data; } /** * Prepares arrays of value/format pairs as passed to wpdb CRUD methods. * * @since 4.2.0 * @access protected * * @param array $data Array of fields to values. * @param mixed $format Formats to be mapped to the values in $data. * @return array Array, keyed by field names with values being an array * of 'value' and 'format' keys. */ protected function process_field_formats( $data, $format ) { $formats = $original_formats = (array) $format; foreach ( $data as $field => $value ) { $value = array( 'value' => $value, 'format' => '%s', ); if ( ! empty( $format ) ) { $value['format'] = array_shift( $formats ); if ( ! $value['format'] ) { $value['format'] = reset( $original_formats ); } } elseif ( isset( $this->field_types[ $field ] ) ) { $value['format'] = $this->field_types[ $field ]; } $data[ $field ] = $value; } return $data; } /** * Adds field charsets to field/value/format arrays generated by * the wpdb::process_field_formats() method. * * @since 4.2.0 * @access protected * * @param array $data As it comes from the wpdb::process_field_formats() method. * @param string $table Table name. * @return array|false The same array as $data with additional 'charset' keys. */ protected function process_field_charsets( $data, $table ) { foreach ( $data as $field => $value ) { if ( '%d' === $value['format'] || '%f' === $value['format'] ) { // We can skip this field if we know it isn't a string. // This checks %d/%f versus ! %s because it's sprintf() could take more. $value['charset'] = false; } else { $value['charset'] = $this->get_col_charset( $table, $field ); if ( is_wp_error( $value['charset'] ) ) { return false; } } $data[ $field ] = $value; } return $data; } /** * For string fields, record the maximum string length that field can safely save. * * @since 4.2.1 * @access protected * * @param array $data As it comes from the wpdb::process_field_charsets() method. * @param string $table Table name. * @return array|false The same array as $data with additional 'length' keys, or false if * any of the values were too long for their corresponding field. */ protected function process_field_lengths( $data, $table ) { foreach ( $data as $field => $value ) { if ( '%d' === $value['format'] || '%f' === $value['format'] ) { // We can skip this field if we know it isn't a string. // This checks %d/%f versus ! %s because it's sprintf() could take more. $value['length'] = false; } else { $value['length'] = $this->get_col_length( $table, $field ); if ( is_wp_error( $value['length'] ) ) { return false; } } $data[ $field ] = $value; } return $data; } /** * Retrieve one variable from the database. * * Executes a SQL query and returns the value from the SQL result. * If the SQL result contains more than one column and/or more than one row, this function returns the value in the column and row specified. * If $query is null, this function returns the value in the specified column and row from the previous SQL result. * * @since 0.71 * * @param string|null $query Optional. SQL query. Defaults to null, use the result from the previous query. * @param int $x Optional. Column of value to return. Indexed from 0. * @param int $y Optional. Row of value to return. Indexed from 0. * @return string|null Database query result (as string), or null on failure */ public function get_var( $query = null, $x = 0, $y = 0 ) { $this->func_call = "\$db->get_var(\"$query\", $x, $y)"; if ( $this->check_current_query && $this->check_safe_collation( $query ) ) { $this->check_current_query = false; } if ( $query ) { $this->query( $query ); } // Extract var out of cached results based x,y vals if ( !empty( $this->last_result[$y] ) ) { $values = array_values( get_object_vars( $this->last_result[$y] ) ); } // If there is a value return it else return null return ( isset( $values[$x] ) && $values[$x] !== '' ) ? $values[$x] : null; } /** * Retrieve one row from the database. * * Executes a SQL query and returns the row from the SQL result. * * @since 0.71 * * @param string|null $query SQL query. * @param string $output Optional. 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 array|object|null|void Database query result in format specified by $output or null on failure */ public function get_row( $query = null, $output = OBJECT, $y = 0 ) { $this->func_call = "\$db->get_row(\"$query\",$output,$y)"; if ( $this->check_current_query && $this->check_safe_collation( $query ) ) { $this->check_current_query = false; } if ( $query ) { $this->query( $query ); } else { return null; } if ( !isset( $this->last_result[$y] ) ) return null; if ( $output == OBJECT ) { return $this->last_result[$y] ? $this->last_result[$y] : null; } elseif ( $output == ARRAY_A ) { 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( " \$db->get_row(string query, output type, int offset) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N" ); } } /** * Retrieve one column from the database. * * Executes a SQL query and returns the column from the SQL result. * If the SQL result contains more than one column, this function returns the column specified. * If $query is null, this function returns the specified column from the previous SQL result. * * @since 0.71 * * @param string|null $query Optional. SQL query. Defaults to previous query. * @param int $x Optional. Column to return. Indexed from 0. * @return array Database query result. Array indexed from 0 by SQL result row number. */ public function get_col( $query = null , $x = 0 ) { if ( $this->check_current_query && $this->check_safe_collation( $query ) ) { $this->check_current_query = false; } if ( $query ) { $this->query( $query ); } $new_array = array(); // Extract the column values for ( $i = 0, $j = count( $this->last_result ); $i < $j; $i++ ) { $new_array[$i] = $this->get_var( null, $x, $i ); } return $new_array; } /** * Retrieve an entire SQL result set from the database (i.e., many rows) * * Executes a SQL query and returns the entire SQL result. * * @since 0.71 * * @param string $query SQL query. * @param string $output Optional. Any of ARRAY_A | ARRAY_N | OBJECT | OBJECT_K constants. * With one of the first three, return an array of rows indexed from 0 by SQL result row number. * Each row is an associative array (column => value, ...), a numerically indexed array (0 => value, ...), or an object. ( ->column = value ), respectively. * With OBJECT_K, return an associative array of row objects keyed by the value of each row's first column's value. * Duplicate keys are discarded. * @return array|object|null Database query results */ public function get_results( $query = null, $output = OBJECT ) { $this->func_call = "\$db->get_results(\"$query\", $output)"; if ( $this->check_current_query && $this->check_safe_collation( $query ) ) { $this->check_current_query = false; } if ( $query ) { $this->query( $query ); } else { return null; } $new_array = array(); if ( $output == OBJECT ) { // Return an integer-keyed array of row objects return $this->last_result; } elseif ( $output == OBJECT_K ) { // Return an array of row objects with keys from column 1 // (Duplicates are discarded) foreach ( $this->last_result as $row ) { $var_by_ref = get_object_vars( $row ); $key = array_shift( $var_by_ref ); if ( ! isset( $new_array[ $key ] ) ) $new_array[ $key ] = $row; } return $new_array; } elseif ( $output == ARRAY_A || $output == ARRAY_N ) { // Return an integer-keyed array of... if ( $this->last_result ) { foreach( (array) $this->last_result as $row ) { if ( $output == ARRAY_N ) { // ...integer-keyed row arrays $new_array[] = array_values( get_object_vars( $row ) ); } else { // ...column name-keyed row arrays $new_array[] = get_object_vars( $row ); } } } return $new_array; } elseif ( strtoupper( $output ) === OBJECT ) { // Back compat for OBJECT being previously case insensitive. return $this->last_result; } return null; } /** * Retrieves the character set for the given table. * * @since 4.2.0 * @access protected * * @param string $table Table name. * @return string|WP_Error Table character set, WP_Error object if it couldn't be found. */ protected function get_table_charset( $table ) { $tablekey = strtolower( $table ); /** * Filter the table charset value before the DB is checked. * * Passing a non-null value to the filter will effectively short-circuit * checking the DB for the charset, returning that value instead. * * @since 4.2.0 * * @param string $charset The character set to use. Default null. * @param string $table The name of the table being checked. */ $charset = apply_filters( 'pre_get_table_charset', null, $table ); if ( null !== $charset ) { return $charset; } if ( isset( $this->table_charset[ $tablekey ] ) ) { return $this->table_charset[ $tablekey ]; } $charsets = $columns = array(); $table_parts = explode( '.', $table ); $table = '`' . implode( '`.`', $table_parts ) . '`'; $results = $this->get_results( "SHOW FULL COLUMNS FROM $table" ); if ( ! $results ) { return new WP_Error( 'wpdb_get_table_charset_failure' ); } foreach ( $results as $column ) { $columns[ strtolower( $column->Field ) ] = $column; } $this->col_meta[ $tablekey ] = $columns; foreach ( $columns as $column ) { if ( ! empty( $column->Collation ) ) { list( $charset ) = explode( '_', $column->Collation ); // If the current connection can't support utf8mb4 characters, let's only send 3-byte utf8 characters. if ( 'utf8mb4' === $charset && ! $this->has_cap( 'utf8mb4' ) ) { $charset = 'utf8'; } $charsets[ strtolower( $charset ) ] = true; } list( $type ) = explode( '(', $column->Type ); // A binary/blob means the whole query gets treated like this. if ( in_array( strtoupper( $type ), array( 'BINARY', 'VARBINARY', 'TINYBLOB', 'MEDIUMBLOB', 'BLOB', 'LONGBLOB' ) ) ) { $this->table_charset[ $tablekey ] = 'binary'; return 'binary'; } } // utf8mb3 is an alias for utf8. if ( isset( $charsets['utf8mb3'] ) ) { $charsets['utf8'] = true; unset( $charsets['utf8mb3'] ); } // Check if we have more than one charset in play. $count = count( $charsets ); if ( 1 === $count ) { $charset = key( $charsets ); } elseif ( 0 === $count ) { // No charsets, assume this table can store whatever. $charset = false; } else { // More than one charset. Remove latin1 if present and recalculate. unset( $charsets['latin1'] ); $count = count( $charsets ); if ( 1 === $count ) { // Only one charset (besides latin1). $charset = key( $charsets ); } elseif ( 2 === $count && isset( $charsets['utf8'], $charsets['utf8mb4'] ) ) { // Two charsets, but they're utf8 and utf8mb4, use utf8. $charset = 'utf8'; } else { // Two mixed character sets. ascii. $charset = 'ascii'; } } $this->table_charset[ $tablekey ] = $charset; return $charset; } /** * Retrieves the character set for the given column. * * @since 4.2.0 * @access public * * @param string $table Table name. * @param string $column Column name. * @return string|false|WP_Error Column character set as a string. False if the column has no * character set. WP_Error object if there was an error. */ public function get_col_charset( $table, $column ) { $tablekey = strtolower( $table ); $columnkey = strtolower( $column ); /** * Filter the column charset value before the DB is checked. * * Passing a non-null value to the filter will short-circuit * checking the DB for the charset, returning that value instead. * * @since 4.2.0 * * @param string $charset The character set to use. Default null. * @param string $table The name of the table being checked. * @param string $column The name of the column being checked. */ $charset = apply_filters( 'pre_get_col_charset', null, $table, $column ); if ( null !== $charset ) { return $charset; } // Skip this entirely if this isn't a MySQL database. if ( false === $this->is_mysql ) { return false; } if ( empty( $this->table_charset[ $tablekey ] ) ) { // This primes column information for us. $table_charset = $this->get_table_charset( $table ); if ( is_wp_error( $table_charset ) ) { return $table_charset; } } // If still no column information, return the table charset. if ( empty( $this->col_meta[ $tablekey ] ) ) { return $this->table_charset[ $tablekey ]; } // If this column doesn't exist, return the table charset. if ( empty( $this->col_meta[ $tablekey ][ $columnkey ] ) ) { return $this->table_charset[ $tablekey ]; } // Return false when it's not a string column. if ( empty( $this->col_meta[ $tablekey ][ $columnkey ]->Collation ) ) { return false; } list( $charset ) = explode( '_', $this->col_meta[ $tablekey ][ $columnkey ]->Collation ); return $charset; } /** * Retrieve the maximum string length allowed in a given column. * The length may either be specified as a byte length or a character length. * * @since 4.2.1 * @access public * * @param string $table Table name. * @param string $column Column name. * @return array|false|WP_Error array( 'length' => (int), 'type' => 'byte' | 'char' ) * false if the column has no length (for example, numeric column) * WP_Error object if there was an error. */ public function get_col_length( $table, $column ) { $tablekey = strtolower( $table ); $columnkey = strtolower( $column ); // Skip this entirely if this isn't a MySQL database. if ( false === $this->is_mysql ) { return false; } if ( empty( $this->col_meta[ $tablekey ] ) ) { // This primes column information for us. $table_charset = $this->get_table_charset( $table ); if ( is_wp_error( $table_charset ) ) { return $table_charset; } } if ( empty( $this->col_meta[ $tablekey ][ $columnkey ] ) ) { return false; } $typeinfo = explode( '(', $this->col_meta[ $tablekey ][ $columnkey ]->Type ); $type = strtolower( $typeinfo[0] ); if ( ! empty( $typeinfo[1] ) ) { $length = trim( $typeinfo[1], ')' ); } else { $length = false; } switch( $type ) { case 'char': case 'varchar': return array( 'type' => 'char', 'length' => (int) $length, ); brePī
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