How to know the xdebug version i have installed?

Question

how to know the xdebug version i have installed?

Regards

Javi

Answer 1

You should be able to do it with a simple test script:

<?php
  phpinfo();
?>

And get output like this:

alt text http://www.woutersamaey.be/wp-content/uploads/2010/01/xdebug-module-loaded.png

Answer 2

php -v command output includes information about installed XDebug version:

$ php -v
PHP 5.6.13-1+deb.sury.org~trusty+3 (cli) 
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2015 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
    with Xdebug v2.3.2, Copyright (c) 2002-2015, by Derick Rethans

or

$ php -v | grep -i "xdebug"

Answer 3

On Debian-based distros such as Ubuntu:

aptitude show php5-xdebug | grep Version

On Redhat-based distros such as CentOS:

yum info php-pecl-xdebug | grep Version

Answer 4

From within PHP, use phpversion:

$version = phpversion('xdebug'); // "2.5.5"

Xdebug uses PHP-standardized version string format, so you can use version_compare on it:

if (version_compare('2.6.0.dev', $version, '<=')) {
    echo 'You are running at least the development version 2.6.0 of Xdebug';
}