Here is a very quick and dirty way to display date on your website.
<?
echo date('m/d/Y');
?>
When you run the above script you will see something this like:
02/12/2006
The php date() function takes in 2 parameters, with the 2nd argument being optional.
The first argument is the format of your date. In the example above, the 'm/d/Y' that you pass in the date() function tells PHP that you are want to display month (m), day of the month (d), and 4-digit year (Y), separated by /'s.
If you want to change the seperator of your month, day, year, you may do so by changing the format you pass in the date() function.
Such as date('m-d-Y') will give you 02-12-2006
You may even change the month/day/year order around, such as date('Y/m/d') will give you 2006/02/12.