PHP Recaptcha::isValid示例

    session_start();
}
require './includes/common/recaptcha.php';
include_once './includes/common/verif_security.php';
include_once './includes/common/mailing.php';
include_once './includes/public/functions.php';
try {
    verif_origin_user();
} catch (Exception $e) {
    header('Location: http://hiddenj.jimdo.com/design-formulaire-1/error1');
    die;
}
/* vérification du captcha*/
$captcha = new Recaptcha('6LdidxgTAAAAAHGefCS0_l2eyEeXVWh4lRFVHyzj', '6LdidxgTAAAAAA-7SGtTTaso_qETEZ6-fg_XUYOz');
if (!empty($_POST)) {
    if ($captcha->isValid($_POST['g-recaptcha-response']) == false) {
        header('Location: http://hiddenj.jimdo.com/design-formulaire-1/error2');
        die;
    }
    if (isset($_POST['firstname']) && isset($_POST['lastname']) && isset($_POST['email']) && isset($_POST['city']) && isset($_POST['cp']) && isset($_POST['country']) && isset($_POST['newsletter']) && isset($_POST['marque']) && isset($_POST['model']) && isset($_POST['type']) && isset($_POST['motorisation']) && isset($_POST['immat']) && isset($_POST['date_circu']) && isset($_POST['infos'])) {
        /* sécurisation faille XSS*/
        if (isset($_POST['concours1'])) {
            $concours1 = true;
        } else {
            $concours1 = false;
        }
        if (isset($_POST['concours2'])) {
            $concours2 = true;
        } else {
            $concours2 = false;
        }