Re: Global Var Disappearing After Function

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On Mon, 22 Mar 2010 16:58:33 -0400
APseudoUtopia <apseudoutopia@xxxxxxxxx> wrote:

> Hey list,
> 
> I have a very odd problem which has been driving me crazy for two
> days. I've been trying to debug my code and gave up. I finally coded a
> very simple representation of what the code does, and I get the same
> problem. However, I still don't understand what's causing it.
> 
> The representational code:
> http://pastie.org/private/fz3lgvsjopz3dhid8cf9a
> 
> As you can see, it's very simple. A variable is set, then a function
> is called which modifies the variable in the global scope. However,
> the modifications CANNOT BE SEEN after the function is called.
> 
> The output from the script is here:
> http://pastie.org/private/29r5mrr1k7rtqmw7eyoja
> 
> As you can see, the modifications in do_test() cannot be seen after
> the function is called.
> 
> What is causing this? And how can I fix it?
> 
> Thanks!
> 

>From PHP.net:

If a globalized variable is unset() inside of a function, only the
local variable is destroyed. The variable in the calling environment
will retain the same value as before unset() was called. [1]

[1] http://php.net/manual/en/function.unset.php


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