Dynamic Generating reports to print

Hi, I'd like to generate reports (with tabular data) to print from php. Now I am using a mixed solution where I save the data in a reports database and I have a delphi app installed pooling the db for pending reports and print it. My plan is move away from the current solution but I am still confused of how am I going to get control of the layout of the report. Generate a PDF ? Use CSS ? Some of the "trick" parts are, for instance, to have the same header in all pages of the same report, if I have tabular data greater than the height of the page continue in the next page etc. Any tips (or code) ? thanks.