prefix . self::$plugin_prefix; self::$db_source_name = self::dbSourceName(); self::$db_host = DB_HOST; self::$db_name = DB_NAME; self::$db_username = DB_USER; self::$db_password = DB_PASSWORD; self::$db_charset = $wpdb->get_charset_collate(); } private static function dbSourceName() { $source_name = array( 'mysql:host=', DB_HOST, ';', 'dbname=', DB_NAME ); return implode('', $source_name); } }