elFinder\elFinderVolumeDriver::mimetype PHP Method

    protected function mimetype($path, $name = '')
    {
        $type = '';
        if ($this->mimeDetect == 'finfo') {
            if ($type = @finfo_file($this->finfo, $path)) {
                if ($name === '') {
                    $name = $path;
                }
                $ext = false === ($pos = strrpos($name, '.')) ? '' : substr($name, $pos + 1);
                if ($ext && preg_match('~^application/(?:octet-stream|(?:x-)?zip)~', $type)) {
                    if (isset(elFinderVolumeDriver::$mimetypes[$ext])) {
                        $type = elFinderVolumeDriver::$mimetypes[$ext];
                    }
                }
            }
        } elseif ($type == 'mime_content_type') {
            $type = mime_content_type($path);
        } else {
            $type = elFinderVolumeDriver::mimetypeInternalDetect($path);
        }
        $type = explode(';', $type);
        $type = trim($type[0]);
        if (in_array($type, array('application/x-empty', 'inode/x-empty'))) {
            // finfo return this mime for empty files
            $type = 'text/plain';
        } elseif ($type == 'application/x-zip') {
            // http://elrte.org/redmine/issues/163
            $type = 'application/zip';
        }
        return $type == 'unknown' && $this->mimeDetect != 'internal' ? elFinderVolumeDriver::mimetypeInternalDetect($path) : $type;
    }