you can test for undefined variables using
isset($var)
or
empty($var)
look into the php manual for more details on these functions
yes php does provide you with an option to create variables from variables
themselves
refer to the following
http://www.php.net/manual/en/language.variables.variable.php
hope that helps
regards
Ankur Verma
HCL Technologies
A1CD, Sec -16
Noida, UP
India
----- Original Message -----
From: "August Malson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, February 08, 2001 12:41 PM
Subject: [PHP] test for undefined variables & renaming variables
> Q:
> Does anyone know of a way to test for undefined variables? For example, I
> am sending a variable into the page, but the processing of the page
depends
> on what is being passed to the page.
>
> Say, I am typing the following on the location bar:
> index.php?fuseaction=something&fuse=6
>
> and I want something to happen if fuse is actually declared, and something
> else to happen if fuse is not defined.
>
> I have tried isdef(), but that function does not seem to work, and I
> couldn't find it in the manual when I was looking for it.
>
> Code to use on:
>
> if($HTTP_GET_VARS("fuse") == NULL) then do something; else do something
> else;
>
>
> Q:
> Also, does anyone know how to rename a variable?
>
> I want to create a variable $attributes_NameOfVariable, but it does not
seem
> to work. is there a function that exists in PHP that will assist me in
this
> process?
>
> Thank you for all of your help, and thank you for your time,
>
> August Malson
>
>
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