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Posted by Sjaakie on 05/23/05 12:42
Ashok wrote:
> Hi,
> I need a condition in update form where before the form is updated, I have
> to check if the value of a cell is empty or not. If it is not empty, an
> error is shown and if empty, it is updated.
> What I am doing wrong in the script ( $_POST['helper1_pos'] gets value from
> the form). It shows error even if the cell is empty.
>
> if (!is_null($_POST['helper1_pos'])) {
> echo "Sorry! Helper 1 position already volunteered.";
> exit;
> }
> else {
> //update
> }
>
> Thanks.
> Ashok.
An empty text-box will return an empty string, not a null-value.
So you might want to try : if ($_POST['helper1_pos'] != '') { ... }
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