Kevinrob\GuzzleCache\CacheEntry::isVaryEquals PHP Method

    public function isVaryEquals(RequestInterface $request)
    {
        if ($this->response->hasHeader('Vary')) {
            if ($this->request === null) {
                return false;
            }
            $varyHeaders = new KeyValueHttpHeader($this->response->getHeader('Vary'));
            foreach ($varyHeaders as $key => $value) {
                if (!$this->request->hasHeader($key) && !$request->hasHeader($key)) {
                    // Absent from both
                    continue;
                } elseif ($this->request->getHeaderLine($key) == $request->getHeaderLine($key)) {
                    // Same content
                    continue;
                }
                return false;
            }
        }
        return true;
    }