This site is temporarily offline

Due to a serious PHP security vulnerability disclosed recently, this website has been temporarily taken offline. The PHP team has now released the fix, and we are working on the upgrade. Access will be restored as soon as possible.

This is an unexpected, unplanned emergency maintenance. We know this is frustrating, but the situation requires immediate attention. Thank you for your understanding.

由于 PHP 近期被披露存在严重安全漏洞，本站已暂时停机。目前 PHP 官方已发布修复补丁，我们正在进行升级，将尽快恢复访问。

这是一次非计划的突发性维护。我们知道这很让人不快，但此特殊情况必须认真对待，感谢您的理解。