How to install the Xdebug extension via PECL in WHM

Introduction

The Xdebug extension provides the following features:

• stack and function traces in error messages with:
  • full parameter display for user-defined functions
  • function name, file name, and line indications
  • support for member functions
• memory allocation
• protection for infinite recursions

Xdebug also provides:

• profiling information for PHP scripts
• code coverage analysis
• capabilities to debug your scripts interactively with a debug client

Installation Procedure

1. Login to WHM as the root user
2. Navigate to: "Home »Software »Module Installers"
3. Click  on the "Manage" link for PECL
4. Select "ea-php72" or above from the dropdown
5. Click Apply next to the php version dropdown
6. Type the following into the box to the left of the "Install Now" button: xdebug
7. Click the blue "Install now" button

Verify Installation

You may use a PHP Info file to verify that the extension has been installed and is enabled:

How to use the PHPInfo file for troubleshooting PHP Issues