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 ID: PhpUnusedLocalVariableInspection
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
Option ID:
ENABLE_IN_FILE_SCOPEDefault value:
Not selected- Ignore a foreach value inside 'list()' or when a 'foreach' key exists
Option ID:
DONT_REPORT_FOREACH_VALUEDefault value:
Selected- Ignore variables inside 'list()'
Option ID:
DONT_REPORT_INSIDE_LISTDefault value:
Not selected- Ignore assignment to 'null'
Option ID:
DONT_REPORT_ASSIGNMENT_TO_NULLDefault value:
Selected- Ignore variables accessed via 'get_defined_vars()'
Option ID:
DONT_REPORT_INDIRECT_ACCESSDefault value:
Selected- Ignore variables before 'include'
Option ID:
DONT_REPORT_BEFORE_INCLUDEDefault 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 2025.3, PhpStorm 2025.3, Qodana for JVM 2025.3, Qodana for PHP 2025.3, |