Your IP : 216.73.216.220
<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Cache\Frontend;
use TYPO3\CMS\Core\Cache\Backend\PhpCapableBackendInterface;
use TYPO3\CMS\Core\Cache\Exception\InvalidDataException;
/**
* A cache frontend tailored to PHP code.
*/
class PhpFrontend extends AbstractFrontend
{
/**
* Constructs the cache
*
* @param string $identifier An identifier which describes this cache
* @param PhpCapableBackendInterface $backend Backend to be used for this cache
*/
public function __construct($identifier, PhpCapableBackendInterface $backend)
{
parent::__construct($identifier, $backend);
}
/**
* Saves the PHP source code in the cache.
*
* @param string $entryIdentifier An identifier used for this cache entry, for example the class name
* @param string $sourceCode PHP source code
* @param array $tags Tags to associate with this cache entry
* @param int $lifetime Lifetime of this cache entry in seconds. If NULL is specified, the default lifetime is used. "0" means unlimited lifetime.
* @throws \InvalidArgumentException If $entryIdentifier or $tags is invalid
* @throws InvalidDataException If $sourceCode is not a string
*/
public function set($entryIdentifier, $sourceCode, array $tags = [], $lifetime = null)
{
if (!$this->isValidEntryIdentifier($entryIdentifier)) {
throw new \InvalidArgumentException('"' . $entryIdentifier . '" is not a valid cache entry identifier.', 1264023823);
}
if (!is_string($sourceCode)) {
throw new InvalidDataException('The given source code is not a valid string.', 1264023824);
}
foreach ($tags as $tag) {
if (!$this->isValidTag($tag)) {
throw new \InvalidArgumentException('"' . $tag . '" is not a valid tag for a cache entry.', 1264023825);
}
}
$sourceCode = '<?php' . LF . $sourceCode . LF . '#';
$this->backend->set($entryIdentifier, $sourceCode, $tags, $lifetime);
}
/**
* Finds and returns a variable value from the cache.
*
* @param string $entryIdentifier Identifier of the cache entry to fetch
* @return string The value
* @throws \InvalidArgumentException if the cache identifier is not valid
*/
public function get($entryIdentifier)
{
if (!$this->isValidEntryIdentifier($entryIdentifier)) {
throw new \InvalidArgumentException('"' . $entryIdentifier . '" is not a valid cache entry identifier.', 1233057753);
}
return $this->backend->get($entryIdentifier);
}
/**
* Loads PHP code from the cache and require_onces it right away.
*
* @param string $entryIdentifier An identifier which describes the cache entry to load
* @return mixed Potential return value from the include operation
*/
public function requireOnce($entryIdentifier)
{
return $this->backend->requireOnce($entryIdentifier);
}
/**
* Loads PHP code from the cache and require() it right away. Note require()
* in comparison to requireOnce() is only "safe" if the cache entry only contain stuff
* that can be required multiple times during one request. For instance a class definition
* would fail here.
*
* @param string $entryIdentifier An identifier which describes the cache entry to load
* @return mixed Potential return value from the include operation
*/
public function require(string $entryIdentifier)
{
return $this->backend->require($entryIdentifier);
}
}