新版本 Directadmin 已经支持 4 个版本的 PHP 共存，需搭配 CustomBuild 2.0 实现。
- cd /usr/local/directadmin/custombuild
- ./build set php1_mode mod_php
- ./build set php2_mode mod_php
- ./build set php3_mode mod_php
- ./build set php4_mode mod_php
- ./build set php1_release 5.6
- ./build set php2_release 7.0
- ./build set php3_release 7.2
- ./build set php4_release 7.3
- ./build php n
- ./build rewrite_confs