Add a captcha field to your php form

I can secure any php web form with a CAPTCHA field.

What is a CAPTCHA ?

A CAPTCHA field will prevent your php web forms being used to send spam and other malicious content by automated bots.

The system generates a challenge-response that can be read by a person but not a computer hence ensuring that only real-people can submit your form.

The price is to secure one web form only.
The website must use PHP for server-side processing.
I can work with either the popular reCAPTCHA system
of provide a bepoke solution working with Zend Captcha.