How to add XDebug zend_extension to php.ini?

php, xdebug

Solution

Highly depends on the PHP configuration (`./configure`). PHP will look in the default extension path for your `xdebug.so` extension; in which case you don't need to specify any path:

zend_extension = xdebug.so

Regarding new line and comma, I prefer new line because it makes it easier to remove an extension later on. My `php.ini` looks like this (example):

extension      = memcached.so
extension      = zopfli.so
zend_extension = opcache.so
zend_extension = xdebug.so

Notice the alphabetical order as well.

Problem

I have a VPS with cPanel WHM and am trying to enable XDebug. I installed the extension by going to `WHM -> Software -> Module Installers -> PHP Pecl -> Manage` and I confirmed it's installed by checking my `phpinfo()` page. The next step is to enable XDebug in my php.ini file, but I'm a little confused how I should go about doing this. Looking at php.ini in `/usr/local/lib`, I see this line at the bottom: ``` zend_extension="/usr/local/Zend/lib/Guard-6.0.0/php-5.4.x/ZendGuardLoader.so" ``` However, in WHM -> Service Configuration -> PHP Configuration Editor, there's a "zend_extension" option with this value: ``` /usr/local/IonCube/ioncube_loader_lin_5.4.so, /usr/local/Zend/lib/Guard-6.0.0/php-5.4.x/ZendGuardLoader.so ``` So my question is, how should I go about adding the path to XDebug: ``` /usr/local/lib/php/extensions/no-debug-non-zts-20100525/xdebug.so ``` To php.ini? I see three ways of doing it and I don't know which is correct: - I could add it to the comma separated list in WHM - I could add it in php.ini directly, putting a comma between it and the existing value - I could put it on a new line in php.ini Which way is correct?

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