Unused parameter
Reports the parameters that are considered unused in the following cases:
The parameter is passed by value, and the value is not used anywhere or is overwritten immediately.
The parameter is passed by reference, and the reference is not used anywhere or is overwritten immediately.
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.
PhpUnusedParameterInspection- 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.
Inspection options
Here you can find the description of settings available for the Unused parameter inspection, and the reference of their default values.
- Ignore parameters of methods/functions with empty body
Default value:
Selected- Ignore parameters of overriding methods
Default value:
Selected- Ignore parameters of abstract classes' methods
Default value:
Not selected- Ignore parameters of anonymous functions
Default value:
Not selected- Don't report parameters accessed via 'func_num_args()'
Default value:
Not selected- Don't report when the property hook parameter is equal to the property type
Default value:
Not selected
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:
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
Inspection Details | |
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By default bundled with: | IntelliJ IDEA 2025.2, PhpStorm 2025.2, Qodana for JVM 2025.2, Qodana for PHP 2025.2, |