Wordpress - disable plugins on local/preview environments

functions.php

<?php
// Turn of subscribe2 for local
switch ($_SERVER['HTTP_HOST'])
{
	case 'domain.com.dev':
	case 'domain.flickerbox.com':
	case 'domain.' . $local_network[1] . '.flickerbox.local':
	case (bool) preg_match("/^(stage\.)?domain\.([a-z]+)\.flickerbox\.local/i", $_SERVER['HTTP_HOST']):
		require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
		deactivate_plugins('subscribe2/subscribe2.php');
		break;
	default:
		break;
}