News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

FuzzyOpinions Blog:
Tutorial improving security with a PHP Captcha
February 21, 2007 @ 11:36:00

On the FuzzyOpinions blog, there's a basic tutorial that walks you through the creation of a CAPTCHA system to use how you'd like on your site. They target it towards the most common use - blocking unwanted comments to a site from spambots.

Although you might not know it by the name, a captcha is one of those little boxes you see, more and more lately, that ask you to type in a random code to verify that you are a human being and not a robot. There are many different varieties, but the basic idea is an image that is obscured slightly but readable by a human and used as a passcode for secure entry to a system or task.

The method is a simple combination of random text, a custom image, some of the PHP graphics functions, and a little addition to your HTML form (and PHP session) to get things up and running.

0 comments voice your opinion now!
security comment captcha tutorial image random session form html security comment captcha tutorial image random session form html


blog comments powered by Disqus

Similar Posts

NETTUTS.com: How to Create Your First Joomla Template

Jason Sheet\'s Blog: Soundex implemented in PHP

Rafael Dohms: Installing Composer Packages

PHPBuilder.com: Add NoSQL Data Storage to Your PHP Development with Redis

SitePoint.com: How to Create an XML to JSON Proxy Server in PHP


Community Events





Don't see your event here?
Let us know!


release api podcast update language package list install interview laravel framework symfony library introduction tips opinion zendserver deployment community series

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework