#39127 [Opn->Asn]: Class-name constructor fallbacks produce strange results
ID: 39127
Updated by: tony2001@php.net
Reported By: colder@php.net
-Status: Open
+Status: Assigned
Bug Type: Scripting Engine problem
Operating System: Irrelevant
PHP Version: 5.2.0RC5
-Assigned To:
+Assigned To: tony2001
Previous Comments:
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[2006-10-11 19:00:45] tony2001@php.net
From what I see, the following happens:
1) class_entry of "A" uses method a() as constructor;
2) class "B" doesn't have a constructor;
3) do_inherit_parent_constructor() looks for "__construct" in "A";
4) there is no "__construct" in "A";
5) named constructor a() is added to "B" as b().
5) seems to be wrong to me, here is the patch:
http://tony2001.phpclub.net/dev/tmp/bug39127.diff
With the patch method a() is still callable and used as constructor in
"B", but there would be no method b().
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[2006-10-11 18:59:29] helly@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
see above
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[2006-10-11 18:59:09] helly@php.net
expected behavior, b inherits a's constuctor and a::__construct
obviously does not exist
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[2006-10-11 18:05:10] colder@php.net
Description:
------------
In php's OOP implementation, the "class-name method" fallback used when
a __construct() method fails seems to have strange effects. Non-existant
methods seems to be callable. It only happens if no constructor is
defined in class b.
This can be reproduced in php4.4, 5.1, 5.2-cvs, 6-cvs :
Reproduce code:
---------------
class a { function a($arg='') { echo $arg; } }
class b extends a {}
$b = new b;
$b->b('foo');
$b->__construct('foo');
Expected result:
----------------
Fatal error: Call to undefined method b::b() in ...
Fatal error: Call to undefined method b::__construct() in ...
Actual result:
--------------
foo
Fatal error: Call to undefined method b::__construct()
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Thread (10 messages)