Retrieves only the headers for an absolute path.

Executes a cURL request without any modifications to the given URL. Note that Guzzle always normalizes URLs which prevents testing all possible edge cases.

Parameters

string $url: URL to request.

Return value

array Array of headers.

File

core/modules/hal/tests/src/Functional/page_cache/PageCacheTest.php, line 111

Class

PageCacheTest

Enables the page cache and tests it with various HTTP requests.

Namespace

Drupal\Tests\hal\Functional\page_cache

Code

protected function getHeaders($url) {
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HEADER, TRUE);
  curl_setopt($ch, CURLOPT_NOBODY, TRUE);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
  curl_setopt($ch, CURLOPT_USERAGENT, drupal_generate_test_ua($this->databasePrefix));
  $output = curl_exec($ch);
  curl_close($ch);
  $headers = [];
  foreach (explode("\n", $output) as $header) {
    if (strpos($header, ':')) {
      [$key, $value] = explode(':', $header, 2);
      $headers[trim($key)] = trim($value);
    }
  }
  return $headers;
}

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