How to do a reCAPTCHA check?

Question

PHP

There is a form with inputs and with google recaptcha
Data from the form is sent to
server.php
pages

<form action="server.php" method="POST">
    <input type="text" name="name" placeholder="Ваше имя">
    <input type="phone" name="phone" placeholder="Ваш телефон">
    <input type="text" name="email" placeholder="Ваша почта">
     <div class="g-recaptcha" data-sitekey="6LcCsWoUAAAAAO520lKAXtblM0p76KNXL3n0dVUZ"></div>
    <button type="submit" name="submit">Отправить</button>
</form>

server.php

if(isset($_POST['submit'])){
$to = "[email protected]";  
$from = "[email protected]"; 
 
$name = $_POST['name'];
$phone = $_POST['phone']; 
$email = $_POST['email'];    
     
/* Переменная, которая будет отправлена на почту со значениями, вводимых в поля */
$mail_to_myemail = "
Имя: $name
Номер телефона: $phone
Почта $email";  
     
$headers = "From: $from \r\n";
     
/* Отправка сообщения, с помощью функции mail() */
mail($to, $mail_to_myemail, $headers . 'Content-type: text/plain; charset=utf-8');
}

Answer 1

backend