php man page for time

TIME(3) 								 1								   TIME(3)

time - Return current Unix timestamp

SYNOPSIS
       int time (void  )

DESCRIPTION
	Returns the current time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).

EXAMPLES
       Example #1

	      time(3) example

	      <?php
	      $nextWeek = time() + (7 * 24 * 60 * 60);
				 // 7 days; 24 hours; 60 mins; 60 secs
	      echo 'Now:       '. date('Y-m-d') ."
";
	      echo 'Next Week: '. date('Y-m-d', $nextWeek) ."
";
	      // or using strtotime():
	      echo 'Next Week: '. date('Y-m-d', strtotime('+1 week')) ."
";
	      ?>

	      The above example will output something similar to:

	      Now:	 2005-03-30
	      Next Week: 2005-04-06
	      Next Week: 2005-04-06

NOTES
       Tip

	       Timestamp of the start of the request is available in $_SERVER['REQUEST_TIME'] since PHP 5.1.

SEE ALSO
       date(3), microtime(3).

PHP Documentation Group 														   TIME(3)