Calling php code from php code on different server
$output = file_get_contents('http://your.remote.server/page.php?args=12345');Or you can use cURL. Keep in mind that when you're executing files in PHP you should limit the ability for other people to do so(ie. password protect the page/directory) and escape the shell arguments before running them.
$param['one'] = 1;$param['two'] = 2;file_get_contents("http://example.com/service.php?".http_build_query($param));