Retrieve Time from NTP server via PHP

I have an issue with a Virtual Machine (VMWare/Ubuntu) that is getting out of time sync. We decided that the best thing to do was to get the time directly from an NTP server so I started researching a script to do that but nothing works so far, that's why I decided to come here and see if someone can point me in the right direction.

To clarify, I'm looking for a way to connect to a Time Server via PHP to retrieve the time directly and reuse it on a timestamp that I need to generate not to sync the server.