Illegal string offset
Reports the usages of non-integer offsets in string access expressions such as $str[42].
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.
PhpIllegalStringOffsetInspection- 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.
Starting from PHP 5.4, string offsets have to be either integers or integer-like strings. Since it's considered bad practice to use strings as a string offset, the inspection reports them, as well.
See String access and modification by character (php.net) for details.
Suppressing Inspection
You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
Inspection Details | |
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By default bundled with: | IntelliJ IDEA 2025.2, PhpStorm 2025.2, Qodana for JVM 2025.2, Qodana for PHP 2025.2, |