From: jmaxwilson at sixteensmallstones dot org
Operating system: Windows XP
PHP version: 5.2.4
PHP Bug Type: Scripting Engine problem
Bug description: __call() method not invoked when methods are called on parent
from child class
Description:
------------
If __call() is used to implement a method in a parent class, and the
method is overridden in an inherited child class using a real method
declaration that calls parent::methodName(), __call() is never invoked and
PHP reports a fatal error saying that the method is undefined.
You can work around the bug by replacing parent::methodName() with
parent::__call('methodName',null), but it means that you have to know which
of the parent's methods are implemented using __call() in order to override
them in a child class.
The child class should be agnostic to whether the parent's methods are
real or magic.
This bug was reported in PHP5.1 RC1 (http://bugs.php.net/bug.php?id=34739)
but was improperly marked as bogus with the explanation that "__call() is
not used when calling static methods." The use of the paamayim-nekudotayim
(::) with the parent keyword is not to resolve static scope but to resolve
inherited scope for an overridden method, therefore the issue should be
reconsidered.
Reproduce code:
---------------
<?php
class A {
function __call($strMethod, $arrArgs) {
return "PHP " .phpversion();
}
}
class B extends A {
function getVersion() {
return parent::getVersion() . " Rocks!";
}
}
$A = new A();
echo $A->getVersion() . "<br/>";
$B = new B();
echo $B->getVersion() . "<br/>";
?>
Expected result:
----------------
PHP 5.2.4
PHP 5.2.4 Rocks!
Actual result:
--------------
PHP 5.2.4
Fatal error: Call to undefined method A::getversion() in C:\www\test.php
on line 10
--
Edit bug report at http://bugs.php.net/?id=42937&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42937&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42937&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42937&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42937&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42937&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42937&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42937&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42937&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42937&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42937&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42937&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42937&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42937&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42937&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42937&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42937&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42937&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42937&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42937&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42937&r=mysqlcfg
