Re: best way to handle required form fields
| From: | Dan Anderson | Date: | Wed, 14 May 2003 00:17:51 +0000 |
| Subject: | Re: best way to handle required form fields | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-147518@lists.php.net to get a copy of this message | ||
You could do a check with Javascript to make sure the required fields
were filled out and had a valid value to them. Since PHP is completely
server side, you would have to check after the page had been submitted.
Let's say you have a text field named "foo", ie.
<INPUT TYPE=TEXT NAME="foo">
You could use:
<?php
if ($_POST['foo'])
{
do_something();
}
else
{
error();
}
?>
This is because like many programming languages 0 is false and
everything else is true. Form values that are not submitted are equal
to NULL -- i.e. false. You could use as many OR statements as necessary
to check that everything was submitted.
-Dan
On Tue, 2003-05-13 at 20:20, daniel@electroteque.org wrote:
> hi there i was wondering what would be the most ideal way to handle
> required form fields say if they were empty and are required , should i do
> a check and send an error and return to the page with the required fields
> in red or would a javascript alert box (ugly) be ok ? reason being my
> prefered way would be sending an error although with my previous issue with
> custom error handlers might be tedious :|
>
>