Inspectopedia Help

Invalid string offset usage

Reports invalid string offset usages that will result in a runtime error.

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

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

The following usages are reported:

  • Using string offsets as objects or arrays

  • Unsetting string offsets via unset

  • Passing string offsets by reference

  • Creating references to or from string offsets

  • Incrementing or decrementing string offsets

  • Using combined operator assignments such as += or .= on string offsets

  • Assigning string offsets with empty strings or strings with length >1


By default bundled with

PhpStorm 2024.1, Qodana for PHP 2024.1,

Can be installed with plugin


Last modified: 18 June 2024