recaptcha server php wp

recaptcha_server

add_action('wp_ajax_nopriv_recaptcha_validate', 'recaptcha_validate');
add_action('wp_ajax__loremrecaptcha_validate', 'recaptcha_validate');
function recaptcha_validate() {

    $recaptcha_client_token = $_REQUEST["google_access_token"];
    $SECRET_KEY = 'private token';
    $responseGoogleRecaptcha = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$SECRET_KEY."&response=".$recaptcha_client_token);
    $responseGoogleRecaptcha = json_decode($responseGoogleRecaptcha,true);
    

    // $other = $_REQUEST["per_page"];
    $response = [
        "state" => 'recaptcha_validate',
        "client_token"=> $google_access_token,
        "server_response" => $responseGoogleRecaptcha,
    ];
    echo json_encode($response);

    /**
     * Always finish with wp_die();
     */
    wp_die(); 
}