staticMethod.resultDiscarded

Code example

<?php declare(strict_types = 1);

class Parser
{
    #[\NoDiscard]
    public static function parse(string $input): array
    {
        return explode(',', $input);
    }
}

Parser::parse('a,b,c');

Why is it reported?

The static method is marked with the #[\NoDiscard] attribute (available since PHP 8.5), which indicates that its return value must not be ignored. Calling the method on a separate line without using the return value means the result is being discarded, which is likely a mistake.

The #[\NoDiscard] attribute is used for methods where the return value is the primary purpose of the call, and ignoring it means the call serves no useful purpose.

How to fix it

Use the return value of the method call:

 <?php declare(strict_types = 1);

-Parser::parse('a,b,c');
+$result = Parser::parse('a,b,c');

If the return value is intentionally not needed, use a (void) cast to explicitly acknowledge the discard:

 <?php declare(strict_types = 1);

-(void) Parser::parse('a,b,c');
+$result = Parser::parse('a,b,c');