Online PHP editor | output for G0rfo

@ 2025-10-24T11:32:37Z

<?php

final readonly class SkipParamUsedAsInvokable {
    public function __construct(private string $name, private object $object) {}
    public function render(callable $formatter): string
    {
        return $formatter($this->name, $this->object);
    }
}

$obj = new SkipParamUsedAsInvokable('name', new \stdClass());
$obj->render(ucfirst(...));

Output for 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: Fatal error: Uncaught ArgumentCountError: ucfirst() expects exactly 1 argument, 2 given in /in/G0rfo:7 Stack trace: #0 /in/G0rfo(7): ucfirst('name', Object(stdClass)) #1 /in/G0rfo(12): SkipParamUsedAsInvokable->render(Object(Closure)) #2 {main} thrown in /in/G0rfo on line 7
Process exited with code 255.
Output for 8.1.34: Parse error: syntax error, unexpected token "readonly", expecting "abstract" or "final" or "class" in /in/G0rfo on line 3
Process exited with code 255.

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