Embedded Media Thumbnail Requires PHP 5.1.2 or higher.

Using Embedded Media Thumbnail with any version of PHP prior to 5.1.2 will generate errors when accessing thumbnails.

This is because on lines 587 and 588 of emthumb.module, the PHP_URL_PATH component is being passed as the second argument to parse_url():

  $file->filename = parse_url($basename, PHP_URL_PATH);
  $file->filepath = parse_url($filepath, PHP_URL_PATH);

The second "component" argument to parse_url() was not added until PHP 5.1.2. This module should either be marked as requiring PHP 5, or be updated to not use the "component" argument to parse_url(). For example, the following code should make the module compatible with older versions of PHP.

        $basename_arr = parse_url($basename);
        $filepath_arr = parse_url($filepath);
        $file->filename = $basename_arr['path'];        
        $file->filepath = $filepath_arr['path'];