----- Original Message ----- 
From: "Erik Johnson" <[EMAIL PROTECTED]>
To: <php-general@lists.php.net>
Sent: Sunday, December 18, 2005 10:41 AM
Subject: Re: [PHP] Someone please help me with this PHP script.


I was wondering.. how exactly does the isset function work?  I saw that
Robert Cummings wrote:

$page = isset( $_GET['page'] ) ? $_GET['page'] : null;

What exactly does that mean?


isset function checks if a given variable is set or not, in above line of
code you are seeing its use with operator (?).

What it will do:
It will check if there is any variable with named $_GET['page'], it is true
then it will assign the value of $_GET['page'] to $page variable, otherwise
it will be set to null value.

You are 14?? Welcome to the wonderfull world of PHP programming.

Zareef Ahmed




====================================================
PHP Expert Consultancy in Development  http://www.indiaphp.com
Yahoo! : consultant_php MSN : [EMAIL PROTECTED]

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