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

Detailed Description

A cache frontend for any kinds of PHP variables

Definition at line 23 of file VariableFrontend.php.

Member Function Documentation

get()

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 75 of file VariableFrontend.php.

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

getByTag()

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

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

Definition at line 99 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 36 of file VariableFrontend.php.

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