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@ 2013-02-19T14:39:33Z

<?php
error_reporting(-1);

interface Supertype {}

class Superclass implements Supertype
{
    public function fn(Superclass $x) {}
}

class Subclass extends Superclass
{
    public function fn(Supertype $x) {}
}

new Subclass;

Output
Performance
VLD
References
Branches

error_reporting: documentation ( source)

preferences:dark modelive previewkey bindings

45.18 ms | 2250 KiB | 5 Q