Symfony\Component\BrowserKit\Cookie::parseDate PHP Метод

    private static function parseDate($dateValue)
    {
        // trim single quotes around date if present
        if (($length = strlen($dateValue)) > 1 && "'" === $dateValue[0] && "'" === $dateValue[$length-1]) {
            $dateValue = substr($dateValue, 1, -1);
        }

        foreach (self::$dateFormats as $dateFormat) {
            if (false !== $date = \DateTime::createFromFormat($dateFormat, $dateValue, new \DateTimeZone('GMT'))) {
                return $date->getTimestamp();
            }
        }

        throw new \InvalidArgumentException(sprintf('Could not parse date "%s".', $dateValue));
    }