<!-- Collection of code snippets by Arne Vajhøj -->
<!-- posted to eksperten.dk, usenet and other places (2002-now) -->
<?php
abstract class P {
    public abstract function getV();
    public function test() {
        echo $this->getV();
    }
}

class C extends P {
    public function getV() {
        return 'It works!';
    }
}

$o = new C();
$o->test();
?>