RE: Using $$

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-----Original Message-----
From: Ford, Mike [mailto:M.Ford@xxxxxxxxxxxxxx] 
Sent: 19 November 2009 07:06 PM
To: php-general@xxxxxxxxxxxxx
Subject: RE:  Using $$

> -----Original Message-----
> From: Arno Kuhl [mailto:akuhl@xxxxxxxxxxxx]
> Sent: 19 November 2009 12:23
> 
> I was looking at some old code that I'm convinced once worked but now 
> using
> php5 it doesn't seem to work anymore.
> 
> $input = "_REQUEST";
> if (is_array($$input)) {
>     // do something
> }


> I tested something other than a superglobal and it works as expected. 
> What am I missing?


Depends where you have this fragment of code, but possibly the big fat
warning box towards the bottom of
http://php.net/language.variables.variable?

Cheers!

Mike
 --

Thanks for the link Mike, didn't know that. It doesn't say when this was
introduced but I'm sure superglobal variable variables must have worked at
some stage, because I've got code that once worked but doesn't anymore and
it's due to this. There's always a workaround, just not as elegant.

Cheers
Arno



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