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@ 2014-07-03T22:51:13Z

<?php

abstract class Foo {}
class Bar extends Foo {}

abstract class Builder {

    function doIt(Foo $foo) {}

}

class RealBuilder extends Builder {


    function doIt(Bar $bar) {
		var_dump($bar);
    }

}

$builder = new RealBuilder();
$bar = new Bar();

$builder->doIt($bar);

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