Connect to MySQL in Windows withour ODBC

Hi, I am doing php developemnt in my windows environment. I want to connect to MySQL database to query some data without using ODBC, below is code I use for Linux. But how do I write in Windows enevironment, especially the [:/path/to/socket], how we usually write it?

mysql_connect ([string hostname [ ort] [:/path/to/socket] [, string username [, string password]]])

Thanks.
vic