Get started with XDebug
Let’s first install the debugger :
# sudo apt-get install php-xdebug
Then enable the extension :
# sudo phpenmod xdebug
Now check the file under /etc/php/7.0/mods-available/xdebug.ini and the following lines into it :
zend_extension=xdebug.so
xdebug.idekey=netbeans-xdebug
xdebug.remote_enable= On
xdebug.remote_handler=dbgp
xdebug.remote_mode=req
xdebug.remote_host=localhost
xdebug.remote_port=9000
Restart Apache:sudo service apache2 restart