A free open-source PHP CAPTCHA script for generating complex CAPTCHA images and audio files. Easy to integrate and customize.
Jan 16, 2011 ... This is one of the easiest CAPTCHA scripts you will ever use. While it doesn't obscure the text, it will serve its purpose well for many people ...
Presenting a simple PHP script for generating a CAPTCHA and using it to block spammers from submitting your online forms.
If you want to use the PHP library to display ... or the CAPTCHA may not show on some ...
A simple PHP CAPTCHA script. Contribute to simple-php-captcha development by creating an account on GitHub.
Mar 12, 2013 ... A CAPTCHA is a type of challenge-response test used in website as an attempt to ensure that the response is generated by a human being.
Mar 5, 2014 ... Mehul Jain explains how captchas work and demonstrates their implementation with PHP and the GD image library.
PHP Module. Have you read our HowTo? We are providing a PHP module to simplify the task of writing a web application using captchas.net. It is named ...