ManaPHP\Cache\Adapter\File::set PHP Method

    public function set($key, $value, $ttl)
    {
        $file = $this->_getFileName($key);
        $dir = dirname($file);
        if (!@mkdir($dir, 0755, true) && !is_dir($dir)) {
            throw new FileException('create `:dir` cache directory failed: :last_error_message', ['dir' => $dir]);
        }
        if (file_put_contents($file, $value, LOCK_EX) === false) {
            throw new FileException('write `:file` cache file failed: :last_error_message', ['file' => $file]);
        }
        @touch($file, time() + $ttl);
        clearstatcache(true, $file);
    }