class PhpBackend

Defines a PHP cache implementation.

Stores cache items in a PHP file using a storage that implements Drupal\Component\PhpStorage\PhpStorageInterface.

This is fast because of PHP's opcode caching mechanism. Once a file's content is stored in PHP's opcode cache, including it doesn't require reading the contents from a filesystem. Instead, PHP will use the already compiled opcodes stored in memory.

Hierarchy

• class \Drupal\Core\Cache\PhpBackend implements CacheBackendInterface

Related topics

Cache API

Information about the Drupal Cache API

File

core/lib/Drupal/Core/Cache/PhpBackend.php, line 21

Namespace

Drupal\Core\Cache

Members

Name	Modifiers	Type	Description
CacheBackendInterface::CACHE_PERMANENT		constant	Indicates that the item should never be removed unless explicitly deleted.
PhpBackend::$bin	protected	property
PhpBackend::$cache	protected	property	Array to store cache objects.
PhpBackend::$checksumProvider	protected	property	The cache tags checksum provider.
PhpBackend::delete	public	function	Deletes an item from the cache. Overrides CacheBackendInterface::delete
PhpBackend::deleteAll	public	function	Deletes all cache items in a bin. Overrides CacheBackendInterface::deleteAll
PhpBackend::deleteMultiple	public	function	Deletes multiple items from the cache. Overrides CacheBackendInterface::deleteMultiple
PhpBackend::garbageCollection	public	function	Performs garbage collection on a cache bin. Overrides CacheBackendInterface::garbageCollection
PhpBackend::get	public	function	Returns data from the persistent cache. Overrides CacheBackendInterface::get
PhpBackend::getByHash	protected	function	Fetch a cache item using a hashed cache ID.
PhpBackend::getMultiple	public	function	Returns data from the persistent cache when given an array of cache IDs. Overrides CacheBackendInterface::getMultiple
PhpBackend::invalidate	public	function	Marks a cache item as invalid. Overrides CacheBackendInterface::invalidate
PhpBackend::invalidateAll	public	function	Marks all cache items as invalid. Overrides CacheBackendInterface::invalidateAll
PhpBackend::invalidatebyHash	protected	function	Invalidate one cache item.
PhpBackend::invalidateMultiple	public	function	Marks cache items as invalid. Overrides CacheBackendInterface::invalidateMultiple
PhpBackend::normalizeCid	protected	function	Ensures a normalized cache ID.
PhpBackend::prepareItem	protected	function	Prepares a cached item.
PhpBackend::removeBin	public	function	Remove a cache bin. Overrides CacheBackendInterface::removeBin
PhpBackend::set	public	function	Stores data in the persistent cache. Overrides CacheBackendInterface::set
PhpBackend::setMultiple	public	function	Store multiple items in the persistent cache. Overrides CacheBackendInterface::setMultiple
PhpBackend::storage	protected	function	Gets the PHP code storage object to use.
PhpBackend::writeItem	protected	function	Writes a cache item to PhpStorage.
PhpBackend::__construct	public	function	Constructs a PhpBackend object.