How do you check for an empty field in a form?

You can check in two ways using php and javascript. If You want client side validation then you can use javascript or if you want server side validation then you can use php.

using javascript

if(document.formnm.fieldnm.value=='')
{
alert('your message');
return false;
}

using php

if($_REQUEST['fieldnm']=='') { echo "Your Message"; }

Answered by: NikJoshi
http://www.jsgnweb.com

Comment on this Question and Answer >>>

ASK A QUESTION

More forms PHP Questions

how do i validate the name into form ?

I am taking over a position from another programmer, and want to change some php code, but part of it has me baffled. The code creates a form and after it is filled, the client wants it to go to a separate thank you page – right now, it re-uses the for

What are magic quotes?

Hi all , I use CURL to login to webtrafficagents.com . I got the script and modified it to login to several sites , but it can't login to this one , any experts can help , a reward is granted :) what i want : I want to be able to view the source

How do I remove HTML tags from a string?