public function KeyValueStoreInterface::has in Drupal 9

Same name and namespace in other branches

1. 8 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()

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);