Requirement severity -- Requirement successfully met. File core/includes/install.inc, line 24 API functions for installing modules and themes. Code const REQUIREMENT_OK = 0;

Requirement severity -- Informational message only. File core/includes/install.inc, line 19 API functions for installing modules and themes. Code const REQUIREMENT_INFO = -1;

Requirement severity -- Error condition; abort installation. File core/includes/install.inc, line 34 API functions for installing modules and themes. Code const REQUIREMENT_ERROR = 2;

Throw this exception to release the item allowing it to be processed again. Hierarchy class \Drupal\Core\Queue\RequeueException extends \RuntimeException File core/lib/Drupal/Core/Queue/RequeueException.php, line 8 Namespace Drupal\Core\Queue Members

Time of the current request in seconds elapsed since the Unix Epoch. This differs from $_SERVER['REQUEST_TIME'], which is stored as a float since PHP 5.4.0. Float timestamps confuse most PHP functions (including date_create()). See also http://php.net/manual/reserved.variables.server.php http://php.net/manual/function.time.php File core/includes/bootstrap.inc, line 88 Functions that need to be loaded on every Drupal request. Code define('REQUEST_TIME', (int) $_SERVER['REQUEST_TIME'])

public RequestStackCacheContextBase::__construct(RequestStack $request_stack) Constructs a new RequestStackCacheContextBase class. Parameters \Symfony\Component\HttpFoundation\RequestStack $request_stack: The request stack. File core/lib/Drupal/Core/Cache/Context/RequestStackCacheContextBase.php, line 29 Class RequestStackCacheContextBase Defines a base class for cache contexts depending only on the request stack. Namespace Drupal\Core\Cache\Context Code public function __construct(Re

The request stack. Type: \Symfony\Component\HttpFoundation\RequestStack File core/lib/Drupal/Core/Cache/Context/RequestStackCacheContextBase.php, line 21 Class RequestStackCacheContextBase Defines a base class for cache contexts depending only on the request stack. Namespace Drupal\Core\Cache\Context Code protected $requestStack;

Defines a base class for cache contexts depending only on the request stack. Subclasses need to implement either \Drupal\Core\Cache\Context\CacheContextInterface or \Drupal\Core\Cache\Context\CalculatedCacheContextInterface. Hierarchy class \Drupal\Core\Cache\Context\RequestStackCacheContextBase File core/lib/Drupal/Core/Cache/Context/RequestStackCacheContextBase.php, line 14 Namespace Drupal\Core\Cache\Context Members Name Modifiers Type Description RequestStackCacheContextBa

Deny delivery of cached pages. File core/lib/Drupal/Core/PageCache/RequestPolicyInterface.php, line 24 Class RequestPolicyInterface Defines the interface for request policy implementations. Namespace Drupal\Core\PageCache Code const DENY = 'deny';

public RequestPolicyInterface::check(Request $request) Determines whether delivery of a cached page should be attempted. Note that the request-policy check runs very early. In particular it is not possible to determine the logged in user. Also the current route match is not yet present when the check runs. Therefore, request-policy checks need to be designed in a way such that they do not depend on any other service and only take in account the information present on the incoming request. When