The code below result is
Week 37(10/09-16/09)
$thisYear = date('Y');
$weekNum = date("W");
$datemon = date('d/m', strtotime("$thisYear-W$weekNum-1"));
$datesun = date('d/m', strtotime("$thisYear-W$weekNum-7"));
echo "Week ".$weekNum."(".$datemon."-".$datesun.")";











