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<?php
declare(strict_types=1);
/*
* 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\Service;
/**
* Class with helper functions for clearing the PHP opcache.
* It auto-detects the opcache system and invalidates/resets it.
* https://forge.typo3.org/issues/55252
* Supported opcaches are: OPcache >= 7.0 (PHP 5.5)
*/
class OpcodeCacheService
{
/**
* Returns all supported and active opcaches
*
* @return array Array filled with supported and active opcaches
*/
public function getAllActive(): array
{
$supportedCaches = [
'OPcache' => [
'active' => extension_loaded('Zend OPcache') && ini_get('opcache.enable') === '1',
'version' => phpversion('Zend OPcache'),
'warning' => self::isClearable() ? false : 'Either opcache_invalidate or opcache_reset are disabled in this installation. Clearing will not work.',
'clearCallback' => static function ($fileAbsPath) {
if (self::isClearable()) {
if ($fileAbsPath !== null) {
opcache_invalidate($fileAbsPath);
} else {
opcache_reset();
}
}
},
],
];
$activeCaches = [];
foreach ($supportedCaches as $opcodeCache => $properties) {
if ($properties['active']) {
$activeCaches[$opcodeCache] = $properties;
}
}
return $activeCaches;
}
/**
* Clears a file from an opcache, if one exists.
*
* @param string|null $fileAbsPath The file as absolute path to be cleared or NULL to clear completely.
*/
public function clearAllActive(string $fileAbsPath = null): void
{
foreach ($this->getAllActive() as $properties) {
$callback = $properties['clearCallback'];
$callback($fileAbsPath);
}
}
protected static function isClearable(): bool
{
$disabled = explode(',', (string)ini_get('disable_functions'));
return function_exists('opcache_invalidate') && !(in_array('opcache_invalidate', $disabled, true) || in_array('opcache_reset', $disabled, true));
}
}