mako\Format

protected function __construct()
{
	// Nothing here
}

public static function json(array $data)
{
	$data = json_encode($data);

	if(!empty($_GET['jsoncallback']))
	{
		$data = $_GET['jsoncallback'] . '(' . $data . ')';
	}

	return $data;
}

public static function xml(array $data, $rootNode = 'items', $unknownNode = 'item', $charset = MAKO_CHARSET)
{
	$xml = new SimpleXMLElement('<?xml version="1.0" encoding="' . $charset . '"?><' . $rootNode . '/>');

	$func = function($data, $xml) use (&$func, $unknownNode, $charset)
	{
		foreach($data as $key => $value)
		{
			$key = preg_replace('/[^_\-0-9-a-z]/i', '', is_int($key) ? $unknownNode : $key);

			if(is_array($value) || is_object($value))
			{
				$func((array) $value, $xml->addChild($key));
			}
			else
			{
				$xml->addChild($key, htmlspecialchars($value, ENT_NOQUOTES, $charset, false));
			}
		}

		return $xml;
	};

	$func($data, $xml);

	return trim($xml->asXML());
}

public static function csv(array $data)
{
	if(!isset($data[0]) || (!is_array($data[0]) && !is_object($data[0])))
	{
		$data = array($data);
	}

	if(is_string(key((array) $data[0])))
	{
		$fields = array_keys((array) $data[0]);

		array_unshift($data, $fields);	
	}

	$handle = fopen('php://temp', 'rw');

	foreach($data as $fields)
	{
		fputcsv($handle, (array) $fields);
	}

	rewind($handle);

	$csv = stream_get_contents($handle);

	fclose($handle);

	return rtrim($csv, "\n");
}