The page is available only when the PHP plugin is enabled. The PHP plugin is not bundled with IntelliJ IDEA, but it can be installed on the Settings/Preferences | Plugins page, tab Marketplace, as described in Installing plugins from JetBrains repository.
On this page, specify the PHP methods and functions which you want the debugger to skip in addition to the common list of items to be skipped which is defined on the stepping settings page.
Skip magic methods
Select this checkbox to suppress stepping into PHP magic methods and any other methods or functions with names starting with a double underscore
Select this checkbox to suppress stepping into constructors.
In this area, create a list of specific methods that you do not want IntelliJ IDEA to step into.
In this area, create a list of specific files that you do not want IntelliJ IDEA to step into. This is helpful when you are using a framework with numerous core files stepping into which is not necessary.