Year and week to date in php

Question

I have two pieces of information extracted from a MySQL database, the year(2009, 2010, ect) and the week (1-52). And I need to convert it i

Answer 1

$year = "2010"; // Year 2010
$week = "01"; // Week 1

$date1 = date( "l, M jS, Y", strtotime($year."W".$week."1") ); // First day of week
$date2 = date( "l, M jS, Y", strtotime($year."W".$week."7") ); // Last day of week
echo $date1 . " - " . $date2;

If week number is under 10 then append a 0 before number. 1 won't work, it should be 01.