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Bug #72034 abstract classes' method compatibility is checked the other way round
Submitted: 2016-04-15 17:42 UTC Modified: 2016-04-16 07:22 UTC
From: youwishspambot at example dot org Assigned:
Status: Verified Package: Scripting Engine problem
PHP Version: 7.0.5 OS:
Private report: No CVE-ID: None
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 [2016-04-15 17:42 UTC] youwishspambot at example dot org
Description:
------------
https://3v4l.org/LKFbZ

and it's a problem for optional parameters:

Test script:
---------------
interface AAA{
    function method($x);
}

interface BBB extends AAA{
    function method($x, $y = null);
}

// this works correctly:
class AA_ implements AAA{
    function method($x){}
}
class BB_ extends AA_ implements BBB{
    function method($x, $y = null){}
}
(new BB_())->method(1, 1);

// this doesn't:
abstract class AAA_ implements AAA{}
abstract class BBB_ extends AAA_ implements BBB{}
// AAA::method is checked to be compatible against BBB::method,
// while it should happen the opposite


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 [2016-04-16 07:22 UTC] krakjoe@php.net
-Status: Open +Status: Verified
 
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