How to enable a PHP extension for Cloudlinux ALT-PHP from command line

Introduction

PHP extensions for the CloudLinux Alt-PHP versions can be enabled through the command line with the selectorctl command.

Procedure

Please note that the following examples are for inocube_loader for Alt-PHP 7.4. Be sure to replace ioncube_loader and 7.4 with the PHP extension you want enabled and the Alt-PHP version for which you want it enabled.

1. Access the server's command line as the 'root' user via SSH or the "Terminal" application in WHM.
2. Verify the extension is disabled.
   

   [root@server ~]cPs# selectorctl --list-extensions --version=7.4 | grep -i ioncube_loader
   - ioncube_loader
   [root@server ~]cPs#

   The minus sign (-) next to the extension indicates that the extension is disabled. A plus sign (+) next to the extension means that the extension is enabled. A tilde (~) next to the extension means that it is compiled into the interpreter and cannot be disabled.

3. Enable the extension.
   

   selectorctl --enable-extensions=ioncube_loader --version=7.4

4. Verify that the extension is enabled.
   

   [root@server ~]cPs# selectorctl --list-extensions --version=7.4 | grep -i ioncube_loader
   + ioncube_loader
   [root@server ~]cPs#