Display a mesagge and redirect (newbie)

Hi to everyone I want to do the following and i dont know if its possible with php code a) run a mysql query b) display a simpe message c) delay few seconds d)auto redirect to a page can I do this with php i know how to do a) and b) and I can't do c) and d) note that if i try d) with function header ("location URL'") got an error for headers already send :-( Thanks in advance for your help and time Best regards simos