PHP dataBase::update 예제들

{
    include "classes/" . $filename . ".php";
}
$dataBase = new dataBase();
if (isset($_POST["changeInfo"])) {
    $newEmail = $_POST["email"];
    $id = $_POST["id"];
    if ($_POST["email"] != "" && $_FILES["profilePicture"]["name"] != "") {
        if ($_FILES["profilePicture"]["type"] == "image/png" || $_FILES["profilePicture"]["type"] == "image/jpeg" || $_FILES["profilePicture"]["type"] == "image/gif") {
            if ($_FILES["profilePicture"]["size"] <= 2000000) {
                $newPictureName = newName($_FILES["profilePicture"]["name"]);
                while (file_exists("img\\" . $newPictureName)) {
                    $newPictureName = newName($_FILES["profilePicture"]["name"]);
                }
                move_uploaded_file($_FILES['profilePicture']['tmp_name'], "img\\" . $newPictureName);
                $test = $dataBase->update("users", "email", "'" . $newEmail . "'", "profile_picture", "'" . $newPictureName . "'", "id", "'" . $id . "'");
                $salt = $dataBase->getRow("salt", "users", true, "'" . $id . "'", "id");
                $actualSalt = $salt[0]["salt"];
                $hash = openssl_digest($newEmail . $actualSalt, 'sha512');
                var_dump($test);
                setcookie("login", $newEmail . "," . $hash, time() + 2592000);
                header("location: gegevens-wijzigen-form.php");
            } else {
                $_SESSION["notifications"]["type"] = "error";
                $_SESSION["notifications"]["message"] = "File is too big";
                header("location: gegevens-wijzigen-form.php");
            }
        } else {
            $_SESSION["notifications"]["type"] = "error";
            $_SESSION["notifications"]["message"] = "File is wrong type";
            header("location: gegevens-wijzigen-form.php");