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Useless trailing comma

Reports the trailing commas in parameters lists and closures' use lists that do not bring any benefit.

  • In a single-line list, a trailing comma is redundant and can be removed.

  • In a multiline list, if no line break is provided after a trailing comma, it becomes impossible to easily add, remove, or move lines.

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.

PhpUselessTrailingCommaInspection
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 | Code smell

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:

//noinspection PhpUselessTrailingCommaInspection

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Last modified: 18 September 2025