One of the biggest problems with form handling is spam. If the form is not protected with captcha, then most likely spam and auto-form submission will happen. But thanks to Google Recaptcha, PHP and AJAX technology, a webmaster can now implement captcha protection without severely affecting the user's experience. This is a beginner tutorial on using Recaptcha with the AJAX prototype framework and PHP.


Read the full article here: Using Recaptcha in AJAX Prototype Framework with PHP

For more discussion go here: Blog Article Discussion