Sanpi\Behatch\HttpCall\Request\BrowserKit::getHttpHeader PHP Метод

    public function getHttpHeader($name)
    {
        $name = strtolower($name);
        $headers = $this->getHttpHeaders();
        if (isset($headers[$name])) {
            if (is_array($headers[$name])) {
                $value = implode(', ', $headers[$name]);
            } else {
                $value = $headers[$name];
            }
        } else {
            throw new \OutOfBoundsException("The header '{$name}' doesn't exist");
        }
        return $value;
    }