Configure a debugging engine
PhpStorm supports debugging for PHP applications, classes, and files. The debugging functionality is incorporated in PhpStorm, you only need to configure its settings.
In PhpStorm, the JavaScript debugger works out of the box and in most cases its default settings are sufficient. If necessary, you can configure the debugger as described in Configuring JavaScript debugger.
PhpStorm supports debugging client-side applications running on the built-in or an external web server. Debugging of JavaScript code is only supported in Google Chrome and in other Chromium-based browsers.
This section describes how to configure two most common PHP debugging engines:
These tools cannot be used simultaneously because they block each other. To avoid this problem, you need to update the corresponding sections in the php.ini file.