MU-plugin for staging website system.php

<?php

/*
Plugin Name: Staging System Custom Functions
Plugin URI: https://www.timtaricco.com
Description: Staging system for: domain.com
Version:09.09.22
Author: Tim Taricco
Author URI: https://www.timtaricco.com
License: GPL2
*/

/*** Change color of WordPress Admin Bar for staging website
 –––––––––––––––––––––––––––––––––––––––––––––––––– ***/
function wsv_is_it_staging()
{
	if (strpos($_SERVER['HTTP_HOST'], 'staging.domain.com') !== false) {
		echo '
			<style type="text/css">
				#wpadminbar {
					background-color: #ff6600;
				}
			</style>
		';
	}
}
add_action('admin_head', 'wsv_is_it_staging');

/*** Disable plugins on live website (i.e password protected plugin)
 –––––––––––––––––––––––––––––––––––––––––––––––––– ***/
function wsv_disable_plugins_live_website($plugins)
{
	if (strpos($_SERVER['HTTP_HOST'], 'www.domain.com') !== false) {
		$key = array_search('password-protected/password-protected.php', $plugins);
		if (false !== $key) {
			unset($plugins[$key]);
		}
	}
	return $plugins;
}
add_filter('option_active_plugins', 'wsv_disable_plugins_live_website');

/*** Disable plugins on staging website (i.e caching plugin)
 –––––––––––––––––––––––––––––––––––––––––––––––––– ***/
function wsv_disable_plugins_staging_website($plugins)
{
	if (strpos($_SERVER['HTTP_HOST'], 'staging.domain.com') !== false) {
		$key = array_search('wp-cloudflare-page-cache/wp-cloudflare-super-page-cache.php', $plugins);
		if (false !== $key) {
			unset($plugins[$key]);
		}
	}
	return $plugins;
}
add_filter('option_active_plugins', 'wsv_disable_plugins_staging_website');

?>