Solved

php - processing checkboxes

Posted on 2014-04-15
3
314 Views
Last Modified: 2014-04-15
Hello,

I have a php program (attached) designed to process checkboxes on a form. Note the echo was to debug & find out why it wasn't working.

Also attached is the HTML page, as it existed upon calling the php program.

Note in the html program, there are several checkbox elements that are NOT checked. Those elements are NOT being picked up in the php program which defeats the whole purpose.

Why are the unchecked elements NOT being picked up?
updt-base-citylinks.php
manage-base-citylinks.htm
0
Comment
Question by:Richard Korts
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 110

Accepted Solution

by:
Ray Paseur earned 500 total points
ID: 40002869
Unchecked checkboxes are not present in the request variables.  They are not "there and empty;" they are simply missing.  This is the way that it works.  Dumb design, but an unfortunate fact of life.  Please read this over and see if it helps with the understanding.
http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_5450-Common-Sense-Examples-Using-Checkboxes-with-HTML-JavaScript-and-PHP.html
0
 

Author Comment

by:Richard Korts
ID: 40002890
I thought that MIGHT be the case, but I thought THAT was a stupid idea to even consider

I can envision a workaround.

Thanks
0
 
LVL 110

Expert Comment

by:Ray Paseur
ID: 40002897
The workaround might be an input of an identical name attribute with type="hidden" as described in the article.  I have used that successfully.  It's a PHP-only solution because some languages that use raw post input require specialized programming to deal with the request data.  But if you're using PHP and you use the $_GET or $_POST arrays, you'll be on firm ground.

Thanks for the points, ~Ray
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
This article discusses four methods for overlaying images in a container on a web page
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question