Re: Global Var Disappearing After Function

On Mon, Mar 22, 2010 at 5:13 PM, Peter van der Does <pvanderdoes@gmail.com> wrote: > On Mon, 22 Mar 2010 16:58:33 -0400 > APseudoUtopia <apseudoutopia@gmail.com> 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 > > Ah ha! I was looking on the php.net/global page for hints, but didn't see any. I should've looked on the unset page. Thanks!