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Posted: Wednesday 3rd of July 2013

Contact Form with Captcha using Ajax, Jquery and PHP

This tutorial is an enhancement of our old tutorial on the topic "Simple PHP Anti-Spam Captcha Contact Form Submission" and it teaches you how to create and add a simple but powerful Anti-Spam Captcha to your system or application using Ajax, Jquery and PHP.

A good way to avoid automatic form submissions when creating a web form or to prevent automated web robot tools and spammers from taking advantage of your forms and scripts is to use some kind of verification process.

One of the best ways is to use an image verification also known as Captcha. What it does is to dynamically create an image with a random string displayed on it. Then visitors or users of your website are asked to type that string in a text field and once the form is submitted, it checks if the string on the image matches the one inputted by the user.

Because there is no easy way to read a text from an image (image recognition) this is a good way to protect your web forms from spammers.

The system is very easy to understand and customize with good programming code comments to ease usability.

To install the system on your server, simply download the zipped folder containing the required files, extract the folder to your system and replace the receiver's email address in the file named vpb_contact_form.php with your email address or your company's email address, save the file and upload the folder containing all the files to your server and you are done to start using the system.

To see the system in action, please click on the Live Demo button below and download if you like what you see.

Click here for a Recommended Version which works with SMTP

That's it guys...



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