Re: test for undefined variables & renaming variables

Not sure if this is hat you are looking for, but I do something similiar in my script. Its set up so that the action of the script depends on whether or not the ASIN was passed in.. if(isset($asin)) { $mode='save_info'; } that way if something like: "book_reviews.php?asin=000129091" is called, then it will save the information, but if "book_reviews.php" is passed, then its not defined and it goes to a different mode (which in my case is a form to get the information) - John Vanderbeck - Admin, GameDesign ----- Original Message ----- From: "August Malson" <thearchgu@mac.com> To: <php-general@lists.php.net> Sent: Thursday, February 08, 2001 2:11 AM Subject: [PHP] test for undefined variables & renaming variables > Q: > Does anyone know of a way to test for undefined variables? For example, I > am sending a variable into the page, but the processing of the page depends > on what is being passed to the page. > > Say, I am typing the following on the location bar: > index.php?fuseaction=something&fuse=6 > > and I want something to happen if fuse is actually declared, and something > else to happen if fuse is not defined. > > I have tried isdef(), but that function does not seem to work, and I > couldn't find it in the manual when I was looking for it. > > Code to use on: > > if($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 > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net > For additional commands, e-mail: php-general-help@lists.php.net > To contact the list administrators, e-mail: php-list-admin@lists.php.net > >