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spam being received with no referrer in the email log

Thread began 12/04/2020 10:00 am by Mags | Last modified 12/14/2020 11:16 am by Mags | 1148 views | 15 replies


This is how I implement reCaptcha v3:

Call JS in the <head> tag:

<script src=""></script>
grecaptcha.ready(function () {
grecaptcha.execute('SITEKEY', { action: 'pagename' }).then(function (token) {
var recaptchaResponse = document.getElementById('recaptchaResponse');
recaptchaResponse.value = token;

Insert this above the form:

<?php // Check if form was submitted:
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['recaptcha_response'])) {

// Build POST request:
$recaptcha_url = '';
$recaptcha_secret = 'SECRET_KEY';
$recaptcha_response = $_POST['recaptcha_response'];

// Make and decode POST request:
$recaptcha = file_get_contents($recaptcha_url . '?secret=' . $recaptcha_secret . '&response=' . $recaptcha_response);
$recaptcha = json_decode($recaptcha);

// Take action based on the score returned:
if ($recaptcha->score >= 0.5) {
// Verified - send email
} else {
// Not verified - show form error

} ?>

Add the following in the form:

<input type="hidden" name="recaptcha_response" id="recaptchaResponse">

Does that look right to you? It would actually be great if you could let me know as Google's own documentation isn't great and I had to search for quite a while before I found this example!

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