[Lvlug] PHP Test foir Variable

[Caleb Shay]

if (isset($_REQUEST['bar'])) {
	// whatever action
}

Cheers,

Caleb

On Thu, 2005-12-22 at 06:33 -0500, Paul Ryan wrote:
> Holiday Greetings, All.
> 
> I'm doing a happy dance having finally gotten Apache 2.2, MySQL 4.1.14,  PHP
> 4.4.1 and SSL running under Slack 10.2.  When one stays on older versions too
> long, the move up to "current" can be painful!
> 
> My question today concerns PHP.  Is there a way to test for the existence of
> an item in the query string without actually equating the item.  For
> instance:
>   $foo = $_POST['bar'];
> or
>   $foo = $_REQUEST['bar]';
> will both generate errors if bar was not defined in the calling FORM document.
>  I would think there would be something like "if_exists" or "if_defined" or
> "exists" but I couldn't find it in my manual search.  Oh, that's another
> thing, as the version numbers grow, so does the size of the manuals!
> 
> :)
> Paul
> 
> 
> _______________________________________________
> Lvlug mailing list
> Lvlug at thelinuxlink.net
> https://www.thelinuxlink.net/mailman/listinfo/lvlug