DateTime
Retrieve server datetime formatted (123)
Date Published: October 20, 2009
 <?php 
//formats current date and time to datetime 
format 
$myServerDatetime = date("Y-m-d G:i:s"); 

echo $myServerDatetime;

?> 
Date Calculations using Unix Timestamps (116)
Date Published: October 20, 2009
 <?php
$tomorrow = mktime(0, 0, 0, date("m"), 
date("d")+1, date("y"));
echo "Tomorrow is ".date("m/d/y", $tomorrow); 
?> 
Automatic Copyright Year [CSS-TRICKS.COM](35)
Date Published: October 20, 2009
 <?php echo "&copy; " . 
        date("Y") ?> 
Change Month Number to Month Name [CSS-TRICKS.COM](92)
Date Published: October 20, 2009
 <?php
$monthNum = 9;
$monthName = date("M", mktime(0, 0, 0, 
$monthNum, 10));
echo $monthName;
?>