First open file with Notepad++: C:\xampp\php\php.ini and copy the following code
[XDebug]
zend_extension = "e:\xampp\php\ext\php_xdebug-2.5.4-5.6-vc11.dll"
xdebug.remote_autostart = 1
xdebug.profiler_append = 0
xdebug.profiler_enable = 0
xdebug.profiler_enable_trigger = 0...