Same name in other branches

1. 9 core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php \Drupal\Core\KeyValueStore\KeyValueStoreInterface::setIfNotExists()
2. 8.9.x core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php \Drupal\Core\KeyValueStore\KeyValueStoreInterface::setIfNotExists()
3. 11.x core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php \Drupal\Core\KeyValueStore\KeyValueStoreInterface::setIfNotExists()

Saves a value for a given key if it does not exist yet.

Parameters

string $key: The key of the data to store.

mixed $value: The data to store.

Return value

bool TRUE if the data was set, FALSE if it already existed.

3 methods override KeyValueStoreInterface::setIfNotExists()

DatabaseStorage::setIfNotExists in core/lib/Drupal/Core/KeyValueStore/DatabaseStorage.php

Saves a value for a given key if it does not exist yet.

MemoryStorage::setIfNotExists in core/lib/Drupal/Core/KeyValueStore/MemoryStorage.php

Saves a value for a given key if it does not exist yet.

NullStorageExpirable::setIfNotExists in core/lib/Drupal/Core/KeyValueStore/NullStorageExpirable.php

Saves a value for a given key if it does not exist yet.

File

core/lib/Drupal/Core/KeyValueStore/KeyValueStoreInterface.php, line 85

Class

KeyValueStoreInterface

Defines the interface for key/value store implementations.

Namespace

Drupal\Core\KeyValueStore

Code

public function setIfNotExists($key, $value);

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