Hi,
You already ask a nearly question a few days ago.
So, before posting this kind of question. Ask you this question:
What does the "response" object mean in ASP ?
It means : Send a response header
Now, what is the equivalent to send HTTP headers in PHP ?
header() function.
to send a specific content-type :
header("content-type:...")
To redirect :
header("Location: newurl")
...
Read http://www.phpbuilder.com/manual/function.header.php
and read the basics of HTTP specification for more.
Hope this helps