Date in PHP

<?php
    $d = date('D : d');
        echo $d."<br>";
    $d = date('M : m');
        echo $d."<br>";
    $d = date('Y : y');
        echo $d."<br>";
?>


The output of the code above could be something like this:
        Sun : 08
        Jul : 07
        2012 : 12