Query

How can I get an online player from an another server?
Example:
On server 1 with the ip: example1.com and the port 19133
On Server 2 with the ip: example2.com and the port 19132
How can I get with a plugin which only installed on server 1 the player with the name 'Frank'

And without the xPaw minecraft query

Make a GET/POST request from the plugin to a destination webserver with the query information.

Only from PM Server to PM Server

Use sockets.
http://php.net/manual/en/book.sockets.php

@HotFireyDeath thanks

Sockets are really GOOD to use thanks that you gave me this page