PhpStorm 2023.3 Help

Code Inspection: Equality operator may cause type coercion

Reports a usage of an equality operator that may cause unexpected type coercions. Suggests replacing == and != with type-safe equality operators === and !==.

Depending on the option selected, one of the following cases will be reported:

  • All usages of == and != operators.

  • All usages except comparison with null. Some code styles allow using x == null as a replacement for x === null || x === undefined.

  • Only suspicious expressions, such as: == or != comparisons with 0, '', null, true, false, or undefined.

Suppress an inspection in the editor

  1. Place 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: 20 February 2024