Show balance for every user in login

<html>
    <head>
        <style>
            table {
  font-family: arial, sans-serif;
  border-collapse: collapse;
  width: 100%;
}

td, th {
  border: 1px solid #dddddd;
  text-align: left;
  padding: 8px;
}

tr:nth-child(even) {
  background-color: #dddddd;
}
        </style>
    </head>
    <body>


<?php

include 'conn.php';


$query = "SELECT * FROM login";
$results=mysqli_query($conn,$query);
$row_count=mysqli_num_rows($results);

echo "<table>";
while ($row = mysqli_fetch_array($results)) {

$user = $row['username'];
echo "<tr><td>".$user."</td></tr>";

$hi = mysqli_query($conn, "SELECT sum(balance) from balance WHERE address='$user'");
$jig = mysqli_fetch_array($hi);
echo "<td>". $jig[0] . "</td>";

}

    ?>

    </body>
</html>