show echo if column is empty else show another echo - php

Question

i wrote this code but there is some mistake its only shows the first echo even if the column is not empty.
i wnat the code to show echo "1" if the column subuser1 is empty
else to show echo "2" if the column subuser1 is not empty.
<?php
include_once 'dbconnect.php';
// Create connection
$conn = new mysqli(DBHOST,DBUSER,DBPASS,DBNAME);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql= ("SELECT subuser1 FROM users WHERE id=".$_SESSION['user'] );
$result = $conn->query($sql);
$subuser1 = $row["subuser1"];
if ($result->num_rows > 0) {
if (empty($subuser1)) {
echo "subuser1 is either 0, empty, or not set at all";
}
} else {
echo " subuser1 not empty";

Answer 1

I solve it like that it works perfect if anyone need it.
<?php
$userR= 0 ;
include_once 'dbconnect.php';
// Create connection
$conn = new mysqli(DBHOST,DBUSER,DBPASS,DBNAME);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql= ("SELECT * FROM users WHERE id=".$_SESSION['user'] );
$result = $conn->query($sql);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
if ($row["subuser1"] == NULL ){
echo ""; }
else {
echo " bla bla bla "
}
}
?>