PHP captcha verification
This way of preventing automated submissions is very used on the internet. More and more website owners start looking for a tool to prevent SPAM. A very good way of protecting your forms, and this is what we're going to talk about in this article is to use the following PHP CAPTCHA class (I will keep the License intact for credits) which will force the visitor to do an Image Verification Test.
Views: 835 | | by Brad
View this tutorial