/**
* @param resource|string $data
* @param string $path
* @param string $relpath
* @param callable $write_callback
* @param string $content_type
*/
private static function _output($data, $path, $relpath, $write_callback, $content_type)
{
if (isset($data)) {
CoreUtils::createUploadFolder($path);
$write_callback($path, $data);
}
CoreUtils::fixPath("{$relpath}?t=" . filemtime($path));
header("Content-Type: image/{$content_type}");
readfile($path);
exit;
}