There are lots of free Captcha modules available on the net which you can simply plug into your website, but if you want to create your own, here is one simple process to create using PHP. Basic concept for Captcha is to reduce or stop spam on your website, Captcha prevents from spam as it force the user to type the exact letters or answer that is generated using some alorigthm before submitting the forms. A common type of Captcha requires the user type letters or digts as that appears on the screen. Today, we are going to build a very simple Captcha using PHP. (more…)

CAPTCHA · PHP