wp_make_plugin_file_tree() WordPress Function

function wp_make_plugin_file_tree( $plugin_editable_files ) {
	$tree_list = array();

	foreach ( $plugin_editable_files as $plugin_file ) {
		$list     = explode( '/', preg_replace( '#^.+?/#', '', $plugin_file ) );
		$last_dir = &$tree_list;

		foreach ( $list as $dir ) {
			$last_dir =& $last_dir[ $dir ];
		}

		$last_dir = $plugin_file;
	}

	return $tree_list;
}