Language level

Last modified: 01 April 2025

Reports the language features used in source code that are not supported for the selected language level.

For example, union types can be used only in PHP 8.0 and later.

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.

PhpLanguageLevelInspection
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 | General

Inspection options

Here you can find the description of settings available for the Language level inspection, and the reference of their default values.

PHP

None

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.3, PhpStorm 2024.3, Qodana for JVM 2024.3, Qodana for PHP 2024.3,

Can be installed with plugin:

PHP, 243.26483