TYPO3\CMS\Core\Cache\Frontend\VariableFrontend Class Reference

Inheritance diagram for TYPO3\CMS\Core\Cache\Frontend\VariableFrontend:

Public Member Functions
	set ($entryIdentifier, $variable, array $tags=[], $lifetime=null)
mixed	get ($entryIdentifier)
array	getByTag ($tag)
‪Public Member Functions inherited from ‪TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend
	__construct ($identifier, BackendInterface $backend)
string	getIdentifier ()
BackendInterface	getBackend ()
bool	has ($entryIdentifier)
bool	remove ($entryIdentifier)
	flush ()
	flushByTags (array $tags)
	flushByTag ($tag)
	collectGarbage ()
bool	isValidEntryIdentifier ($identifier)
bool	isValidTag ($tag)

Additional Inherited Members
‪Public Attributes inherited from ‪TYPO3\CMS\Core\Cache\Frontend\FrontendInterface
const	TAG_CLASS = '%CLASS%'
const	TAG_PACKAGE = '%PACKAGE%'
const	PATTERN_ENTRYIDENTIFIER = '/^[a-zA-Z0-9_%\\-&]{1,250}$/'
const	PATTERN_TAG = '/^[a-zA-Z0-9_%\\-&]{1,250}$/'
‪Protected Attributes inherited from ‪TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend
string	$identifier
AbstractBackend TaggableBackendInterface	$backend

Detailed Description

A cache frontend for any kinds of PHP variables

Definition at line 23 of file VariableFrontend.php.

Member Function Documentation

get()

mixed TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::get

(

$entryIdentifier

)

Finds and returns a variable value from the cache.

Parameters

string

$entryIdentifier

‪Identifier of the cache entry to fetch

Returns

‪mixed The value

Exceptions

Implements TYPO3\CMS\Core\Cache\Frontend\FrontendInterface.

Definition at line 72 of file VariableFrontend.php.

References TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend\isValidEntryIdentifier().

getByTag()

array TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::getByTag

(

$tag

)

Finds and returns all cache entries which are tagged by the specified tag.

Parameters

string

$tag

‪The tag to search for

Returns

‪array An array with the content of all matching entries. An empty array if no entries matched

Exceptions

Definition at line 96 of file VariableFrontend.php.

References TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend\$identifier, and TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend\isValidTag().

set()

TYPO3\CMS\Core\Cache\Frontend\VariableFrontend::set	(		$entryIdentifier,
			$variable,
		array	$tags = [],
			$lifetime = null
	)

Saves the value of a PHP variable in the cache. Note that the variable will be serialized if necessary.

Parameters

string	$entryIdentifier	‪An identifier used for this cache entry
mixed	$variable	‪The variable to cache
array	$tags	‪Tags to associate with this cache entry
int	$lifetime	‪Lifetime of this cache entry in seconds. If NULL is specified, the default lifetime is used. "0" means unlimited lifetime.

Exceptions

Implements TYPO3\CMS\Core\Cache\Frontend\FrontendInterface.

Definition at line 35 of file VariableFrontend.php.

References $GLOBALS, TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend\isValidEntryIdentifier(), and TYPO3\CMS\Core\Cache\Frontend\AbstractFrontend\isValidTag().