configure the remote server so it doesn't parse php-files or simply change the extention of the file.
You could also acces the file via ftp with a username or password, allthough this is much slower!
There is no way to get the code from a php file on a webserver wich parses php files.
I'm glad there isn't, otherwise everyone would be able to read my code, AND passwords in the file.
Greetz Daan