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MySQLiHandler.php
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<?php /** * This file is part of CodeIgniter 4 framework. * * (c) CodeIgniter Foundation <admin@codeigniter.com> * * For the full copyright and license information, please view * the LICENSE file that was distributed with this source code. */ namespace CodeIgniter\Session\Handlers\Database; use CodeIgniter\Session\Handlers\DatabaseHandler; /** * Session handler for MySQLi */ class MySQLiHandler extends DatabaseHandler { /** * Lock the session. */ protected function lockSession(string $sessionID): bool { $arg = md5($sessionID . ($this->matchIP ? '_' . $this->ipAddress : '')); if ($this->db->query("SELECT GET_LOCK('{$arg}', 300) AS ci_session_lock")->getRow()->ci_session_lock) { $this->lock = $arg; return true; } return $this->fail(); } /** * Releases the lock, if any. */ protected function releaseLock(): bool { if (! $this->lock) { return true; } if ($this->db->query("SELECT RELEASE_LOCK('{$this->lock}') AS ci_session_lock")->getRow()->ci_session_lock) { $this->lock = false; return true; } return $this->fail(); } }