Prado\I18N\core\MessageSource_MySQL::connect PHP Метод

    protected function connect()
    {
        /*static $conn;
        
        		if($conn!==null)
        			return $conn;
        		*/
        $dsninfo = $this->dns;
        if (isset($dsninfo['protocol']) && $dsninfo['protocol'] == 'unix') {
            $dbhost = ':' . $dsninfo['socket'];
        } else {
            $dbhost = $dsninfo['hostspec'] ? $dsninfo['hostspec'] : 'localhost';
            if (!empty($dsninfo['port'])) {
                $dbhost .= ':' . $dsninfo['port'];
            }
        }
        $user = $dsninfo['username'];
        $pw = $dsninfo['password'];
        $connect_function = 'mysql_connect';
        if ($dbhost && $user && $pw) {
            $conn = @$connect_function($dbhost, $user, $pw);
        } elseif ($dbhost && $user) {
            $conn = @$connect_function($dbhost, $user);
        } elseif ($dbhost) {
            $conn = @$connect_function($dbhost);
        } else {
            $conn = false;
        }
        if (empty($conn)) {
            throw new Exception('Error in connecting to ' . $dsninfo);
        }
        if ($dsninfo['database']) {
            if (!@mysql_select_db($dsninfo['database'], $conn)) {
                throw new Exception('Error in connecting database, dns:' . $dsninfo);
            }
        } else {
            throw new Exception('Please provide a database for message' . ' translation.');
        }
        return $conn;
    }