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  2. PHP
  3. Type compatibility
  4. Illegal array key type

Illegal array key type

Last modified: 03 December 2024

Reports the array keys that are of illegal type, such as objects or arrays.

See Arrays (php.net) for details.

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.

PhpIllegalArrayKeyTypeInspection
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 | Type compatibility

Inspection options

Here you can find the description of settings available for the Illegal array key type inspection, and the reference of their default values.

PHP 8.0 Severity

Default setting: Error

Other available settings:

  • Warning

  • Weak Warning

  • Server Problem

  • Grammar Error

  • Typo

  • Consideration

  • Information

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, 243.23126