3v4l.org

run code in 300+ PHP versions simultaneously

sponsor
bughunt
search
recent
about

@ 2023-08-21T11:08:41Z

<?php

class A {}
class B {}

class C {
    public function __construct(
        protected A|B $b
    ) {
        if ($this->b instanceof A) {
            trigger_error('A is deprecated, pass B instead', E_USER_DEPRECATED);
            $this->b = new B();
        }
        var_dump($this->b);
    }
}

new C(new A());
new C(new B());

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
trigger_error: documentation ( source)

preferences:dark modelive preview

21.29 ms | 405 KiB | 5 Q