if problem

[hermzz]

how do i do when i want to do:

if $variable doesnt exist?
what is the notation, i have seen ! used but i cant make it work.
here is the part of the code:

if (!$offset) { 
			$offset = 0;
			$h_limit = $offset+$limit;
			$result = mysql_query("SELECT * FROM $table LIMIT $offset,$h_limit"); 
		} else {  {       $result = mysql_query("SELECT * FROM $table LIMIT $l_offset,$limit"); } }

the variabel in this case is "$offset"

[herve]

Hi,

if you want to check if a variable has been set , use
the isset() statement.

Mre info here :

http://www.php.net/manual/en/function.isset.php

Hervé.