Code Conversion ASP --> PHP Example

I am in the early stages of learning PHP as an alternative to ASP. I am using MySQL and need a beginning nudge. If anyone has the time, could you please convert the following basic code block into pure PHP/MySQL minus all the MS bits? It's a very simple example I know but the principles would help me to understand some things that are not sinking in right now. Thank you! <% strConnection = "driver={MySQL ODBC 3.51 Driver};server=localhost;user=username;" strConnection = strConnection & "pwd=demo;database=mysql450" Set objConn = Server.CreateObject("ADODB.Connection") objConn.Open strConnection strSQL = "SELECT * FROM categories" Set objRS = objConn.Execute(strSQL) Do While Not objRS.EOF Response.Write objRS("categoryid") & ", " Response.Write objRS("catdescription") & ", " Response.Write objRS("catimage") & "<br>" objRS.MoveNext Loop objRS.Close Set objRS = Nothing objConn.Close Set objConn = Nothing %> David