My site already has the public and secret keys issued by Google, but reCAPTCHA v2 still isn’t active on the production forms. I need the complete front-end and server-side implementation finished, tested, and documented so that every submission passes through Google’s verification before the form proceeds. The task covers: • Dropping the reCAPTCHA v2 widget into one contact form (HTML/PHP) without disrupting existing CSS. • Writing the verification call in PHP that checks the response token against Google’s endpoint and blocks or allows the request accordingly. • Returning a user-friendly error message when the check fails, while logging failed attempts for review. • Verifying that the solution works on desktop and mobile, with and without JavaScript enabled. • Supplying a short read-me that shows where to plug in new keys if they are ever rotated. Everything should be coded in plain PHP—no heavy frameworks—so it remains easy for me to maintain. Once you have it running on a staging URL, I will test and then point production to the live script.