json_encode, decode จาก mysql ออกมาแล้วมีตัวเลขออกมาด้วย จะเอาออกยังไงอ่ะครับ

define('URL_Conn_Function', 'conn_function.php');
function RequestDataJsonReturn($type,$table){
    try{
        $DataToSend = "type=".$type."&table=".$table;
        $ctx = stream_context_create(array('http' => array('method' => 'POST','header' => 'Content-Type: application/x-www-form-urlencoded','content' => $DataToSend,)));
        $response = file_get_contents(URL_Conn_Function,false,$ctx); 
        return $response;
        // return $DataToSend;
    }catch(Exception $ex){
        return false;
    }
    return false;
}

echo $strJsonData =  RequestDataJsonReturn('RequestData','booking'); //type,table

include ('connect.php');

function select_returnjson($table,$option){
    $query = "SELECT * FROM $table"." ".$option;
    $rows = array();
    $result = mysql_query($query) or die(mysql_error());
    if ($result){
        while($row = mysql_fetch_array($result))
            $rows[] = $row;
    }
    mysql_free_result($result);
    header('Content-type: application/json');
    return json_encode($rows);

    return $result;
    mysql_close($conn);
}

if ($type == "RequestData" && $table== "booking"){
print select_returnjson($preload,'order by bkdate desc');
exit();
}