Access MySQL via PHP script on another server?

Let's say I have a VPS with a public IP 123.123.100.101 I put a PHP script in there which is going to read a table from my blog database (say the database name is h123084_wp702) So, first I have to grant remote access, right? Then the issue is to update my connection code. I have this: [PHP] [/PHP] What are the correct values of $host, $user, and $pass? I cannot update my original post with attachments, because it was detected as spam :( So here are the pictures, anyway.