Duplicate array keys

Reports duplicate keys in array declarations.

If multiple elements in the array declaration use the same key, only the last one will be used, and all others will be overwritten.

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.

PhpDuplicateArrayKeysInspection

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 | Probable bugs

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

01 April 2025