function Registration($mail, $pass, $gender, $usertype)
{
    if (checkvaliduser($mail) == true) {
        if ($pass != '' && $mail != '') {
            if (validateEmail($mail)) {
                $insert_id = insertintousers($mail, $pass, $gender, $usertype);
                if (is_numeric($insert_id) && $insert_id > 0) {
                    header("location:login.php");
                }
            } else {
                echo "Please Enter Valide email.";
            }
        } else {
            echo "Please Enter Valide email and Password.";
        }
    } else {
        echo "This is not Valide Email.";
    }
}
$response = "";
include_once "../lib/sm-connection.php";
include_once "../lib/sm-constant.php";
include_once "../lib/userfunctions.php";
//$owner_id= $_POST['owner_id'];
$full_name = $_POST['full_name'];
$pass = $_POST['pass'];
$email_id = $_POST['email_id'];
$isActive = $_POST['isActive'];
$user_address = $_POST['user_address'];
$dob = $_POST['dob'];
$date = time();
$gender = $_POST['gender'];
$created_at = date("Y-m-d H:i:s", $date);
if (!empty($owner_id)) {
    $data = insertintousers($full_name, $pass, $email_id, $isActive, $user_address, $dob, $gender, $created_at);
    foreach ($friend_names as $name) {
        insertintofriend($name, $data);
    }
    $response = "insert=success";
    $target_dir = '/opt/lampp/htdocs/PHP/2/categoryimages/';
    $target_file = $target_dir . "{$data}" . "_icon.jpg";
    $imageFileType = pathinfo($target_file, PATHINFO_EXTENSION);
    $categoryiconname = basename($_FILES['user_image']['name']);
    $check = getimagesize($_FILES["user_image"]["tmp_name"]);
    if (move_uploaded_file($_FILES["user_image"]["tmp_name"], $target_file)) {
        $response = "insert=success";
        updateCat($category_id);
        header("location: ../catAdd.php?in=1");
    } else {
        $response = "insert=failed";