ReCaptcha in Zend Framework 2 without Zend/Form
The problem Captcha is a very useful mechanism to avoid automated abuse of your sites and applications. In particular,reCAPTCHA is a Google powered service that offers a free and simple way to implement a captcha protection field in your forms or pages. Zend Framework 2 implements his own components to handle captcha and a specific one to handle reCAPTCHA service. At the moment, the ZF2 documentation is very usefull if you want to integrate a reCAPTCHA in your Zend/Form component, but lacks in describing how to use reCAPTCHA service component alone.
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