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@ 2026-02-16T18:07:30Z

<?php

class A
{
    public function foo(string $text = null)
    {
        var_dump($text);
    }
}

class B extends A
{
    public function foo(?string $text = null)
    {
        var_dump($text);
    }
}

$a = new A();
$a->foo('Hello');

$b = new B();
$b->foo('Hello');

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

72.65 ms | 477 KiB | 5 Q