Debug with PhpStorm and Xdebug

Simultaneous debugging sessions with PhpStorm

Usage

Sometimes, you could have to debug code in another PhpStorm project, you have to update the configuration.

PHP configuration

In php.ini, edit file and put xdebug.remote_autostart = 1

PhpStorm configuration

You also have to configure your IDE:

In the phpStorm configuration, Max. simultaneous connections must be set to a value greater than one.

Official documentation

More information in the official documentation

Configuration

Have a look in your php.ini configuration file and enable Xdebug, add the following statement:

[Xdebug]
zend_extension=<full_path_to_xdebug_extension>
xdebug.remote_enable=1
xdebug.remote_host=<the host where PhpStorm is running (e.g. localhost)>
xdebug.remote_port=<the port to which Xdebug tries to connect on the host where PhpStorm is running (default 9000)>

for example with Wamp configurated I have:

; XDEBUG Extension

zend_extension = "d:/wamp/bin/php/php5.5.12/zend_ext/php_xdebug-2.2.5-5.5-vc11.dll"
;
[xdebug]
xdebug.remote_enable = 1
xdebug.profiler_enable = off
xdebug.profiler_enable_trigger = off
xdebug.profiler_output_name = cachegrind.out.%t.%p
xdebug.profiler_output_dir = "d:/wamp/tmp"
xdebug.show_local_vars=0
xdebug.remote_host=localhost
xdebug.remote_port=9000

Restart Apache

Then in a shell execute this command to verify if Xdebug is correctly running:

php --version

Once your PHP project is created, if you want to debug it, you have to set up your php interpreter and Xdebug in settings: