Install Xdebug with NginX Server

Install Xdebug php

sudo apt install php-xdebug

Configure Xdebug

Example:

sudo gedit /etc/php/5.6/mods-available/xdebug.ini

Add (Example)

zend_extension=xdebug.so

xdebug.remote_enable=1

xdebug.remote_handler=dbgp

xdebug.remote_mode=req

xdebug.remote_host=localhost

xdebug.remote_port=9000

xdebug.var_display_max_depth = -1

xdebug.var_display_max_children = -1

xdebug.var_display_max_data = -1

xdebug.idekey = "netbeans-xdebug"

Restart nginx and php-fem (here php5.6-fpm)

sudo /etc/init.d/nginx restart

sudo /etc/init.d/php5.6-fpm restart

# OR

sudo service nginx restart

sudo service php5.6-fpm restart

Configre IDE (Here Netbeans)

Goto Tools->Options->PHP->Debuging

Set session ID and Debugger Port if different.

Note : Check 'Stop at first line' to test, then uncheck if you do not need.

Tips

On netBeans:

Run your project in debug mode (Ctrl + F5)

View Variables

Step over ( F8 )

Step Into ( F7 )

Step Out ( Ctrl + F7 )

Run to cursor ( F4 )

Continue ( F5 )