Unused local variable
Reports the variables that are considered unused in the following cases:
The value of the variable is not used anywhere or is overwritten immediately.
The reference stored in the variable 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.
PhpUnusedLocalVariableInspection- 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 local variable inspection, and the reference of their default values.
- Enable inspection in global space
Default value:
Not selected- Ignore a foreach value inside 'list()' or when a 'foreach' key exists
Default value:
Selected- Ignore variables inside 'list()'
Default value:
Not selected- Ignore assignment to 'null'
Default value:
Selected- Ignore variables accessed via 'get_defined_vars()'
Default value:
Selected- Ignore variables before 'include'
Default value:
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, |