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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.

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

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

Not selected

Ignore a foreach value inside 'list()' or when a 'foreach' key exists

Default: Selected

Ignore variables inside 'list()'

Not selected

Ignore assignment to 'null'

Default: Selected

Ignore variables accessed via 'get_defined_vars()'

Default: Selected

Ignore variables before 'include'

Default: Selected

Availability

By default bundled with

PhpStorm 2024.1, Qodana for PHP 2024.1,

Can be installed with plugin

PHP, 241.SNAPSHOT

Last modified: 18 June 2024