if (isset($_POST["email"])) {
            $to = 'gsikora475@gmail.com';
            $name = $_POST["imie"];
            $lastname = $_POST["nazwisko"];
            $telefon = $_POST["telefon"];
            $email = $_POST["email"];
            $message = "";
            $subject = "Zgloszenie";
            $message = "Numer telefonu: " . $telefon . "  " . $message . "\r\n" . "Email: " . $email;
            $from = $name . " " . $lastname;
            $headers = 'From: '.$from."<" . $email . ">\r\n" .
                    'Reply-To: ' . $email . "\r\n" .
                    'X-Mailer: PHP/' . phpversion();
            $success = mail($to, $subject, $message, $headers);
            if (!$success) {
                $wynik = error_get_last()['message'];
            } else {
                $wynik = "Dziękujemy za wysłanie zgłoszenia.";
                $div = '<div id="mailing" style="position: fixed; width:100%; height: 50px; font-size:30px; text-align:center; z-index: 40; background-color: white;">' . $wynik . '</div>';
            }
            echo $div;
        }
        ?>