ManaPHP\Http\Session\Adapter\File::write PHP Method

    public function write($sessionId, $data)
    {
        $file = $this->_getFileName($sessionId);
        $dir = dirname($file);
        if (!@mkdir($dir, 0755, true) && !is_dir($dir)) {
            throw new SessionException('create `:dir` session directory failed: :last_error_message', ['dir' => $dir]);
        }
        if (file_put_contents($file, $data, LOCK_EX) === false) {
            trigger_error(strtr('write `:file` session file failed: :last_error_message', [':file' => $file]));
        }
        file_put_contents($file, $data);
        @touch($file, time() + $this->_ttl);
        clearstatcache(true, $file);
    }