MySQL Database'den JSON Veri Çekmek

<?
function mysql2json($resultSet,$debug="false"){
    $numberRows=0;
    $arrfieldName=array();
    $json="{\n'data': [\n";
    while (false !==($meta = mysql_fetch_field($resultSet)))  {
        array_push(&$arrfieldName,$meta->name);
    }

    while($row=mysql_fetch_array($resultSet, MYSQL_NUM)) {
        $json.="{\n";
        for($r=0;$r < count($arrfieldName);$r++) {
            $json.="'".htmlspecialchars($arrfieldName[$r])."' : '".htmlspecialchars($row[$r])."',\n";
        }
        $json = trim($json,",\n");

        $json.="\n},\n";
    }
    $json = trim($json,",\n");
    $json.="]\n}";

    if($debug===true) {
        $json = "<pre>$json</pre>";
    }
    echo trim($json);
}

//Kullanımı

$db = mysql_query("select * from veriler");
mysql2json($db);

//excode
?>