Error Handling

[millercepbs]

I have a php/mysql form that I need to add some error handling to. I would like to disable my submit button until the user has entered information in a certain field. I see a lot of people doing this with javascript, but is there a way to do it in just html/php? I want to avoid java at all costs...and to be frank would rather not have error handling that use java on this.

Thanks

ps. i'm not looking for people who are going to tell me to use java and get over it. I really hate those rude kinds of posts like that.

[thekidscareya]

This is how I do it:

<?php
if(isset($_POST['Submit']))
{
// process the form

if(empty($_POST['my_field']))
{
$error .= "<li>You left the field empty</li>";
}

// repeat the above code as many times as you need to

if(isset($error))
{
// display errors
echo "<ul>$error</ul>";
}else{
// process form



}
}else{
// show the form

}
?>