'; } add_action('woocommerce_checkout_order_review', 'doublee_show_me_the_checkout_captcha', 18); /** * Validate reCaptcha */ function doublee_process_recaptcha() { $postdata = $_POST['g-recaptcha-response']; $verified_recaptcha = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret=YOUR_KEY_HERE&response='.$postdata); $response = json_decode($verified_recaptcha); if(!$response->success) { wc_add_notice('Please verify that you are not a robot' ,'error'); } } add_action('woocommerce_checkout_process', 'doublee_process_recaptcha');