Get User

<?php

include "connect_db.php";
$query = "SELECT username,password FROM tbuser";
$result = mysql_query($query, $link) or die('Errorquery:  '.$query);

$rows = array();
while ($r = mysql_fetch_assoc($result)) {
    $rows[] = $r;
}

$data = "{user:".json_encode($rows)."}";
echo $data;

?>