PHP - xdebug... como hacerlo funcionar?

Buenas tardes

Estoy intentado instalar xDebug en mi PC.
Esoy siguiendo todos los pasos q me dicen en su pagina web

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Tailored Installation Instructions
Summary
Xdebug installed: no
Server API: Apache 2.0 Handler
Windows: no
Zend Server: no
PHP Version: 7.1.1
Zend API nr: 320160303
PHP API nr: 20160303
Debug Build: no
Thread Safe Build: no
Configuration File Path: /opt/lampp/etc
Configuration File: /opt/lampp/etc/php.ini
Extensions directory: /opt/lampp/lib/php/extensions/no-debug-non-zts-20160303
Instructions

Download xdebug-2.5.1.tgz
Unpack the downloaded file with tar -xvzf xdebug-2.5.1.tgz
Run: cd xdebug-2.5.1

Run: phpize (See the FAQ if you don't have phpize.

As part of its output it should show:

Configuring for:
...
Zend Module Api No: 20160303
Zend Extension Api No: 320160303

If it does not, you are using the wrong phpize. Please follow this FAQ entry and skip the next step.
Run: ./configure
Run: make
Run: cp modules/xdebug.so /opt/lampp/lib/php/extensions/no-debug-non-zts-20160303
Edit /opt/lampp/etc/php.ini and add the line
zend_extension = /opt/lampp/lib/php/extensions/no-debug-non-zts-20160303/xdebug.so
Restart the webserver
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A pesar de esto.. no consigo ver xdebug ni en phpinfo

alguien sabe que es lo q pasa?

Un saludo