PHP Image Verification Script
DRBImageVerification is a free and simple anti-spam image verification, or CAPTCHA, script. It allows you to add a challenge-response test to your existing PHP powered forms to prevent automated spam postings.
- Quick and easy to install.
- Verification string length and character list are configurable.
- Requires a session cookie, for additional obscurity.
- Includes an example PHP page demonstrating how to add a verification image to a form.
To see the DRBImageVerification in action, please visit our demo site.
- PHP 4.4 or higher. Visit our PHP Hosting page for a list of web hosting services that support PHP.
- GD library
You must agree to the license before using this program.