PHP - How can I do my own human verification?

Question

I'd like to make my own php script for the human verification . Like an easy series of numbers/letters (captcha), nothing special.

Suggestion? Tips? Things to keep in mind?

Answer 1

You could use a captcha service such as recaptcha to check for a human.

Or create your own using an image library and storing the answers in a database and giving the names of the image file something that cannot be traced back to the word, you might need to make the words fuzzy as bot can use ocr.

another novel approach i saw was someone using an ascii art captcha like this

http://www.network-science.de/ascii/