0 && ($_GET["quantity"] <= 100 || $usertype == "buyer")) {
$quantity = $_GET["quantity"];
$name = mysqli_real_escape_string($conn, $_GET["name"]);
$add = "UPDATE $usertype SET `$name` = $quantity WHERE name='$username'";
$res = mysqli_query($conn, $add);
if (!$res) {
echo "";
}
}
else if ($_GET["quantity"] > 100 && $usertype == "seller") {
echo "";
}
else{
echo "";
}
}
echo "";
?>