repeat region

Hi php'ers, I have learnt alot in the last week in regards to php and listing the rows of a table set. I need help with a small challenge. I can retrieve rows from a database table and list the results in HTML <tr> cell successfully. My challenge is this. I want to list the I.D (auto increment id number) of a data base table in html to display 7 columns accross and then drop down to the next row and another 7 columns accross. So the result would list numbers .1-7 then drop down and list 8-14 underneath and so in until the end of the results. Is this at all possible?? Difficult?? Is there a project or a tutorial with an example I can draw from.?? Cheers