Untitled

<?php
if ($_SERVER ['REQUEST_METHOD'] == 'POST') {
    $errors = array();
    if (empty($_POST ['nom'])) {
        $errors ['error_nom'] = "Merci de remplir ce champ";
    }
    if (empty ($_POST ['mail'])) {
        $errors ['error_mail'] = " Merci de remplir ce champ ";
    }
    if (empty($_POST ['telephone'])) {
        $errors ['error_telephone'] = " Merci de remplir ce champ ";
    }
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset=" UTF-8 ">
    <title> Formulaire </title>
    <style type="text/css">
        .$ error {
            couleur: rouge;
        }
    </style>
</head>
<body>
<?php
if ($_SERVER ['REQUEST_METHOD'] == 'POST' && count($errors) == 0) {
    include('sucess.php');
} else {
    include('form.php');
}
?>
</body>
</html>