How to load a wordpress plugin at very last - change plugin order to load last

How to load a wordpress plugin at very last.php

<?php
/*
*
* Use the code at the beginning of a plugin that you want to be laoded at last 
*
*/
function this_plugin_last() {
	$wp_path_to_this_file = preg_replace('/(.*)plugins\/(.*)$/', WP_PLUGIN_DIR."/$2", __FILE__);
	$this_plugin = plugin_basename(trim($wp_path_to_this_file));
	$active_plugins = get_option('active_plugins');
	$this_plugin_key = array_search($this_plugin, $active_plugins);
        array_splice($active_plugins, $this_plugin_key, 1);
        array_push($active_plugins, $this_plugin);
        update_option('active_plugins', $active_plugins);
}
add_action("activated_plugin", "this_plugin_last");

Is it possible to add it to functions.php and use preg_replace to plugin name? to avoid plugin updates override.
thx