Help with date/time in PHP

I am trying to code the following:

$expires = current date + 7 days



and


if current date > $expires echo('expired');


can anyone help?

 

$now = time();    // current unix timestamp
$day = 3600 * 24; //numbers of seconds per day

$expires = $now + 7*$day;

PHP:

$now = time(); // current unix timestamp
if($now > $expires) 
  echo ('expired');

PHP:

 

how would you display the actual time from that value?

 

$time = time(); //current time stamp
echo strftime ("%D", $time);

PHP:

To know what the %D means, and other possibilities you have, you must read this page http://www.php.net/strftime