Install PECL extensions using the CLI

Introduction

PECL Modules can be installed using the command line if they are not available via the "Module Installer" interface of WHM.

Connect to the server using SSH as the root user.
Each installed version of PHP uses its own PECL installer. You find them in the following path where "##" is the numbered version of PHP:
```
/opt/cpanel/ea-php##/root/usr/bin/pecl
```
Run the installer with the "install" flag and the name of the module you wish to install:
```
/opt/cpanel/ea-php##/root/usr/bin/pecl install $module
```
If you are using CloudLinux, rebuild CageFS so users can see the updated extensions:
```
cagefsctl --update
```
You can confirm the installation by listing the PHP modules for the installed version:
```
/opt/cpanel/ea-php##/root/usr/bin/php -m | grep $module
```