Php-training-Saturday-august-17-2013

How to Implement CAPTCHA Image in PHP Module

Sample PHP Implementation

                     PHP Module

                     Stages

                                -Quering

                                -Checking

CaptchasDotNet PHP Module

How to Create CAPTCHA Protection using PHP and AJAX

                 The AJAX HTML Page (the Front-end)

                     The JavaScript

                     The PHP Server Page (the Backend)

                     The Ways to Make It More Secure

Creating a CAPTCHA with PHP

                 How does a CAPTCHA work?

                     Creating the random text

                     Writing the text to the image

                     Check if the user entered the code correctly

                     Improvements and Conclusion