public function HeaderBag::keys

Returns the parameter keys.

@api

Return value

array An array of parameter keys

File

drupal/core/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/HeaderBag.php, line 85

Class

HeaderBag

HeaderBag is a container for HTTP headers.

Namespace

Code

public function keys() {
  return array_keys($this->headers);
}