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Unused declaration

Reports the classes, methods, functions, constants, or properties that are not used or not reachable from entry points. It also reports all method implementations/overriders.

Some unused members might not be reported in the code editor on the fly. Due to performance reasons, a non-private member is checked only when its name rarely occurs in the project.

To see all results, run the inspection in batch mode by using Code | Inspect Code... or Code | Run Inspection by Name....

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | PHP | Unused symbols

Inspection options

Here you can find the description of settings available for the Unused declaration inspection, and the reference of their default values.


By default bundled with

PhpStorm 2024.1, Qodana for PHP 2024.1,

Can be installed with plugin


Last modified: 18 June 2024