Hello i am trying to user Autocomplete jqueryUI but i having trouble showing data from my database. I pretty sure that the problem lies there. Here is the code

define('DB_SERVER', 'localhost');
define('DB_USERNAME', 'root');
define('DB_PASSWORD', '');
define('DB_DATABASE', 'project');
$db = mysqli_connect(DB_SERVER, DB_USERNAME, DB_PASSWORD,DB_DATABASE) or die(mysqli_connect_error());
mysqli_query ($db,"set character_set_results='utf8'");

// if the 'term' variable is not sent with the request, exit
    // query the database table for zip codes that match 'term'
    $rs = mysqli_query('SELECT uid, username FROM users WHERE username LIKE "'. mysqli_real_escape_string($_REQUEST['term']) .'%" ORDER BY username ASC LIMIT 0,10', $db);
    // loop through each zipcode returned and format the response for jQuery
    if ( $rs && mysqli_num_rows($rs) )
        while( $row = mysqli_fetch_array($rs, MYSQL_ASSOC) )
            $row['uid'] .', '. $row['username'];

// jQuery wants JSON data
echo json_encode($data);


and here is when i call it

<form action="test/submit.php" method="POST" accept-charset="utf-8">
            <select id="select3" name="select3">
                <option value="sleep" class="selected">sleep</option>
                <option value="sport">sport</option>
                <option value="freestyle">freestyle</option>
            <input type="submit" value="Send">
        <script type="text/javascript">
                    json_url: "ajax_autocomplete.php",
                    addontab: true,                   
                    maxitems: 10,
                    input_min_size: 0,
                    height: 10,
                    cache: true,
                    newel: true,
                    select_all_text: "select",

Can you see an error?

Sorry but i cant make any donations because of the capital controls in Greece. :(

My guess is


is false.

No that wasn't it. It wasnt making any difference anyway. Do you see any other errors?

One other mistake is that there is no echo to return the values