confused about !==

[cumpstey]

I want a session variable, 'init', to be updated only when another variable, 'initial' is not blank. As far as I can see the following two lines should each do this. The first line is neater and is what I initially wrote, but only the second does what I want. The first returns $_SESSION['init'] blank if $initial is blank. Can anyone point out to me where I've been daft? I'm using PHP 5.2.0.

if ($initial!=='') {$_SESSION['init']=$initial;}
if ($initial=='') {} else {$_SESSION['init']=$initial;}

Thanks,
Neil

[Jessica]

!== compares types as well as value, not what you want here. Try != or instead use
if(!isset($initial)){

[obsidian]

!== is too strict for what you're after. This operator compares by value [b]and[/b] data type. You're better off using simply !=
[code]
<?php
if ($initial != '') { $_SESSION['init'] = $initial;
?>
[/code]

Hope this helps, and welcome to the forums!

*doh* beat to it again ;)

[cumpstey]

Thanks very much!

Neil