ÿØÿÛC  ÿØÿÛC  */ interface MimetypeHelper { /** * Determines the mimetype of a file by looking at its extension. * * @param string $filename * * @return string|null */ public function getMimetypeFromFilename($filename); /** * Maps a file extensions to a mimetype. * * @param string $extension The file extension * * @return string|null */ public function getMimetypeFromExtension($extension); }