ClearCacheService.php

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<?php
namespace ‪TYPO3\CMS\Install\Service;
 
/*
 * 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!
 */
 
use ‪TYPO3\CMS\Core\Core\Bootstrap;
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪ClearCacheService
{
    public function ‪clearAll()
    {
        // Delete typo3temp/Cache
        GeneralUtility::flushDirectory(‪Environment::getVarPath() . '/cache', true, true);
 
        // Get all table names from Default connection starting with 'cf_' and truncate them
        $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
        $connection = $connectionPool->getConnectionByName('Default');
        $tableNames = $connection->getSchemaManager()->listTableNames();
        foreach ($tableNames as $tableName) {
            if (strpos($tableName, 'cf_') === 0 || $tableName === 'cache_treelist') {
                $connection->truncate($tableName);
            }
        }
 
        // check tables on other connections
        $remappedTables = isset(‪$GLOBALS['TYPO3_CONF_VARS']['DB']['TableMapping'])
            ? array_keys((array)‪$GLOBALS['TYPO3_CONF_VARS']['DB']['TableMapping'])
            : [];
        foreach ($remappedTables as $tableName) {
            if (strpos((string)$tableName, 'cf_') === 0 || $tableName === 'cache_treelist') {
                $connectionPool->getConnectionForTable($tableName)->truncate($tableName);
            }
        }
 
        // From this point on, the code may fatal, if some broken extension is loaded.
 
        // Use bootstrap to load all ext_localconf and ext_tables
        ‪Bootstrap::loadTypo3LoadedExtAndExtLocalconf(false);
        ‪Bootstrap::unsetReservedGlobalVariables();
        ‪Bootstrap::loadBaseTca(false);
        ‪Bootstrap::loadExtTables(false);
 
        // The cache manager is already instantiated in the install tool
        // with some hacked settings to disable caching of extbase and fluid.
        // We want a "fresh" object here to operate on a different cache setup.
        // cacheManager implements SingletonInterface, so the only way to get a "fresh"
        // instance is by circumventing makeInstance and/or the objectManager and
        // using new directly!
        $cacheManager = new \TYPO3\CMS\Core\Cache\CacheManager();
        $cacheManager->setCacheConfigurations(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['caching']['cacheConfigurations']);
        $cacheManager->flushCaches();
    }
}