How to print a 3 characters digit?

hi all,
I have this code:


<?
for ($i=001; $i <= 200; $i++) {
echo ("$i <br>");
}
 ?>

and I want it will print from 001 to 200 (not 1 to 200)
how do I do it guys ? thanks

and here is my gift for you if you solve that problem:


<?
for ($i=001; $i <= 200; $i++) {

echo ("<a href='http://www.dns.tlw.cn/1/JPEG640/013/151_200/SM'.$i.'_L.jpg'> http://www.dns.tlw.cn/1/JPEG640/013/151_200/SM".$i."_L.jpg</a> </br>");
}
?>