how to debug in netbeans code example

Example 1: netbeans xdebug

zend_extension=/path/to/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

Example 2: how to debug in php

ini_set('display_errors', 'On');
error_reporting(E_ALL);