Converting seconds since the Unix epoch to RFC 2822 format

I would imagine this is pretty easy, but I must be overlooking something in the manual as I just can't seem to figure out how to do it. Can anyone give me a hint?

 

Everything you need is here... http://us2.php.net/manual/en/function.time.php

 

Thanks .

For future reference the solution looks like:

date('r', 1116329331);

PHP:

where 1116329331 is an example of seconds since the Unix epoch.