sudo apt-get install php5-xdebug
find / -name 'xdebug.so'
Now update the options in PHP.INI – /etc/php5/apache2/php.ini
# Added for xdebug zend_extension="/usr/lib/php5/20121212/xdebug.so" xdebug.remote_enable=1 xdebug.remote_handler=dbgp xdebug.remote_mode=req xdebug.remote_host=127.0.0.1 xdebug.remote_port=9000 xdebug.max_nesting_level=300
Restart Apache2, and you are ready to go!
sudo service apache2 restart
References :
http://ubuntuforums.org/showthread.php?t=525257
http://wylbur.us/2014-06-17-add-xdebug-to-ubuntu-1404
http://purencool.com/installing-xdebug-on-ubuntu
https://www.jetbrains.com/phpstorm/help/configuring-xdebug.html