Symfony\Component\HttpKernel\Security\Firewall\DigestData::__construct PHP Method

    public function __construct($header)
    {
        $this->header = $header;
        $parts = preg_split('/, /', $header);
        $this->elements = array();
        foreach ($parts as $part) {
            list($key, $value) = explode('=', $part);
            $this->elements[$key] = '"' === $value[0] ? substr($value, 1, -1) : $value;
        }
    }