function KeyValueStoreInterface::has

Same name in other branches
  1. 9 core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php \Drupal\Core\KeyValueStore\KeyValueStoreInterface::has()
  2. 10 core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php \Drupal\Core\KeyValueStore\KeyValueStoreInterface::has()
  3. 11.x core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php \Drupal\Core\KeyValueStore\KeyValueStoreInterface::has()

Returns whether a given key exists in the store.

Parameters

string $key: The key to check.

Return value

bool TRUE if the key exists, FALSE otherwise.

3 methods override KeyValueStoreInterface::has()
DatabaseStorage::has in core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php
Returns whether a given key exists in the store.
MemoryStorage::has in core/lib/Drupal/Core/KeyValueStore/MemoryStorage.php
Returns whether a given key exists in the store.
NullStorageExpirable::has in core/lib/Drupal/Core/KeyValueStore/NullStorageExpirable.php
Returns whether a given key exists in the store.

File

core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php, line 27

Class

KeyValueStoreInterface
Defines the interface for key/value store implementations.

Namespace

Drupal\Core\KeyValueStore

Code

public function has($key);

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