PhpStorm 2021.1 Help

Code Inspection: Empty branch in alternation

Reports empty branches in a RegExp alternation. For example:
a b

An empty branch will only match the empty string, and in most cases that is not what is desired. This inspection will not report a single empty branch at the start or the end of an alternation.

New in 2017.2

Suppress an inspection in the editor

  1. Position the caret at the highlighted line and press Alt+Enter or click the Intention action icon.

  2. Click the arrow next to the inspection you want to suppress and select the necessary suppress action.

Last modified: 08 March 2021