creating a directory on a external server

[azertykk]

hello,

i would like to create a directory (using php) on a external server
so for example if the php script is executed on http://www.Server1.com
i would like to create a directory on http://www.Server2.com/Folders

the folder on server 2 has all read and write permissions.

i tried :
mkdir('http://www.Server2.com/Folders/NewFolder',0770);
but it fails.

so, any idea how to solve this?