Undefined index

[kvnirvana]

I've got this on my page index.php

 

$rand = $_SESSION['rand'];
if (empty($rand)) {
srand((float)microtime()*1000003);
$rand = rand();
$_SESSION['rand'] = $rand;
}

 

On all my other pages i've got this

 

<?php unset($_SESSION['rand']) ?>

 

The problem is that if I go to any other page than index it will unset the session 'rand'. If I then go back to index.php I get this error 'Notice: Undefined index: rand'

 

is there a way to get around this?

 

[marcus]

You're trying to give a variable the value of something nonexistent. You should try something like:

 

$rand = (isset($_SESSION['rand'])) ? $_SESSION['rand'] : '';[code=php:0]

[kvnirvana]

Thanks :=)