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[PHP] PHP 低版本如何打补丁
查看 Linux 系统版本：
lsb_release -a
查看非官方 apt 源，用于查看安装 php 的源
grep -vrh '^#' /etc/apt/sources.list /etc/apt/sources.list.d/ | grep -v 'debian.org'
在下方网站，查看对应的源和系统版本，确定补丁是否更新
https://ma.ttias.be/php-cve-2026-109618-patch/#php-81-and-older
php -v 查看版本和构建时间，确定当前 php 版本和构建时间
PHP 7.4.33 (cli) (built: Feb 13 2026 15:51:10) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
with Zend OPcache v7.4.33, Copyright (c), by Zend Technologies...
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