Posted by Jochem Maas on 01/11/06 12:04

William Stokes wrote:
> Hello
>
> What is the best way to determine if a variable has no value?
>
> if ($var== '')
>
> or
>
> if ($var== 'null')
>
>
> Can 'null' be used here?

yeah buts its a string which doesn't do what you want.



if (empty($var)) { echo 'yes'; }

or:

if (is_null($var)) { echo 'yes'; }


>
> Thanks
> -Willa
>

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