Check Xdebug Version

Xdebug is a popular PHP extension used by developers to debug code, analyze performance, and gain insights into the execution of their applications. It provides features like step debugging, stack traces, and profiling, making it an essential tool for efficient PHP development. This tutorial demonstrates how to check Xdebug version.

1. 'version' option

If you have command line access, you can check the Xdebug version by using the command with the --version option (or its shorthand, -v):

php --version

php -v

This command outputs information about the PHP version, including a text line similar to with Xdebug vX.Y.Z.

PHP 8.4.1 (cli) (built: Nov 20 2024 11:13:29) (ZTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Zend Engine v4.4.1, Copyright (c) Zend Technologies
    with Xdebug v3.4.0, Copyright (c) 2002-2024, by Derick Rethans

If the text with Xdebug vX.Y.Z is not present, it indicates that the Xdebug extension is either not installed or not enabled.

2. 'phpversion' function

Alternatively, you can use a PHP script to retrieve the Xdebug version programmatically. Create a script with the following content:

<?php

$version = phpversion('xdebug');
echo $version;

If Xdebug is installed and enabled, it will display its version number, such as 3.4.0.