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Bug #25690 call_user_func_array disrespect returned references
Submitted: 2003-09-29 09:29 UTC Modified: 2003-09-29 20:58 UTC
From: ask-me at ask-me dot ru Assigned:
Status: Not a bug Package: Scripting Engine problem
PHP Version: 4.3.3 OS: All
Private report: No CVE-ID: None
 [2003-09-29 09:29 UTC] ask-me at ask-me dot ru
Description:
------------
Unfortunatly even in version 4.3.3 there was an bug with "call_user_func_array" function. 

call_user_func and call_user_func do respect functions that return
references.  That is, function foo that returns a references to an
object, does not return a reference to an object when foo is called via
call_user_func.  Instead, foo called via call_user_func returns a "copy"
of the object.  (I'm not sure "copy" is the right word.)  See the code
example for a concise example of the problem.

Reproduce code:
---------------
	function &testfunction()
	{
		global $testglobal;

		return ($testglobal=1);
	}

	$testglobal_link=&call_user_func_array("testfunction",array('testparam-1','testparam-2'));
	// $testglobal_link must be link to $testglobal at this stage
	print $testglobal_link;
	// trying to assign new value to $testglobal thru link
	$testglobal_link=2;
	// in theory we will get "2" as result
	print $testglobal;
	// but unfortunatly we will have "1" as result
	print $testglobal_link;


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 [2003-09-29 20:58 UTC] sniper@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

..

 
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