ID:               15696
 Updated by:       [EMAIL PROTECTED]
-Summary:          Can't set/unset global-ed variables
 Reported By:      [EMAIL PROTECTED]
-Status:           Bogus
+Status:           Open
-Bug Type:         Scripting Engine problem
+Bug Type:         Documentation problem
 Operating System: Linux & Win32
 PHP Version:      4.1.1
 New Comment:

Re-Opening as documentation problem.


Previous Comments:
------------------------------------------------------------------------

[2002-02-24 10:52:26] [EMAIL PROTECTED]

OK, I know that.
I was just moving an old PHP3 script to PHP4 and noticed that problem.
Anyway, there's nothing mentioned in "Migrating from PHP 3.0 to PHP
4.0" section of the manual about this (significant I think) change. 

Thanks for the reply,

Marek Matula

------------------------------------------------------------------------

[2002-02-24 10:27:28] [EMAIL PROTECTED]

Read manual about reference. You are unsetting reference to global. Not
the actual var.

------------------------------------------------------------------------

[2002-02-24 10:12:53] [EMAIL PROTECTED]

The bug system is not the appropriate forum for asking support
questions. For a list of a range of more appropriate places to ask
for help using PHP, please visit http://www.php.net/support.php

------------------------------------------------------------------------

[2002-02-24 10:10:51] [EMAIL PROTECTED]

I'm running the following script:

$id=1;
function test()
{
        global $id;
        unset($id);
}
test();
echo($id);

As the function test is being executed I think, the $id variable should
be unset and so the script should output nothing, but it outputs 1. It
IS possible to change the value od $id inside the 'test' function, it's
just not possible to change the set/unset state. 
It's easy to omit the problem by unsetting $GLOBALS["id"] variable, but
I think it should be possible to unset the global-ed variable in both
ways.
The problem affects all PHP 4.x versions. The 3.x versions work as I
expect.

Regards,
Marek Matula



------------------------------------------------------------------------


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