argument.unused

Code example

<?php declare(strict_types = 1);

define('MY_CONST', 'value', true);

Why is it reported?

The third argument $case_insensitive of define() is ignored since PHP 8.0. Declaration of case-insensitive constants was deprecated in PHP 7.3 and the parameter was removed in PHP 8.0. Passing this argument has no effect and is silently ignored.

How to fix it

Remove the third argument:

 <?php declare(strict_types = 1);

-define('MY_CONST', 'value', true);
+define('MY_CONST', 'value');