register

<?php
// Create connection
    $conn = mysqli_connect($servername, $username, $password, $dbname);;
    if (!$conn) {
        die("Connection failed: " . mysqli_error($conn));
    }
    if(isset($_POST['login']) && isset($_POST['passwd']) && isset($_POST['email'])) {
        $usrnm = $_POST['login'];
        $password = $_POST['passwd'];
        $email = $_POST['email'];
    }else{
        echo "Podaj kompletne dane do rejestracji!";
    }

    $sql = "INSERT INTO loginsTB (id, login, pass, email) VALUES ('','$usrnm', '$password', '$email')";
    if (mysqli_query($conn, $sql)=== TRUE) {
        echo "Zostałeś pomyślnie zarejestrowany!";
    } else {
        echo "ERROR: " . $sql . "<br>" . $conn->error;
    }
    if (!isset($_SESSION["login"])) {
        header("Location: registeredsite.php");
    }
    mysqli_close($conn);
}

?>