function format($result)
{
switch (gettype($result)) {
case 'array':
foreach ($result as $_k => $_v) {
$result[$_k] = bigapp_core::format($_v);
}
break;
case 'boolean':
case 'integer':
case 'double':
case 'float':
$result = (string) $result;
break;
}
return $result;
}