maG66

Install the plugin and check the Status URL Link. You can submit it to observo-monitoring.com to monitor it 24/7. 
– shell_exec must be available for cpu and memory 
– The plugin will install an open rest api 
– External servers can access this api to get performance stats 
– Services like observo-monitoring.com can give you an added value
<h3>Credits</h3>
<a href="https://www.observo-monitoring.com" title="Observo Monitoring" rel="nofollow ugc">Observo Monitoring</a>

Observo Monitoring

Monitor your Server Memory, Disk and CPU from external server

mazedulislam27

“PHP version” is very simple and lightweight plugin that will help you for showing up the current PHP version in WordPress dashboard.
If you satisfied with this plugin, please <a href="https://wordpress.org/support/view/plugin-reviews/php-version" rel="ugc">rate</a> it. Your rate will encourage to do better in the future.

PHP Version

You can able to see the current PHP version in WordPress admin dashboard widget.

Observo Monitoring vs PHP Version