Posted by Rasmus Lerdorf on 01/17/05 11:13

Andrew Maxwell wrote:
> When you submit something, and you want to make sure that the user
> inputs all of the info, is there an easier way to do it than this:
>
> if ((!$_POST[name]) || !$_POST[pass]) || (!$_POST[blah]))
> {
> etc.....
> }
>
> is there an easy way to check if all of the varibles have data in them?

Not sure if you will find this easier, but you can clean up your POST
array (or any other array for that matter) and get rid of any entries
matching some criteria you specify by using array_filter. In your case
you probably want to get rid of any empty strings and anything just
containing whitespace.

function clean($arg) { return strlen(trim($arg)); }
$fp = array_filter($_POST, 'clean');

Now you have your filtered post variables in the $fp array. You can
quickly check if a certain array elements are set like this:

if(isset($fp['name'],$fp['pass'],$fp['blah']))

-Rasmus

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