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Declaration of overridden method should be compatible with parent class

Reports the overridden methods declarations that are not compatible with the parent class. The inspection is enabled only for the PHP language level lower than 8.0.

Locating this inspection

By ID

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

PhpSignatureMismatchDuringInheritanceInspection
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 | PHP strict standards

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection PhpSignatureMismatchDuringInheritanceInspection

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Last modified: 18 September 2025