function find_weekday($month, $year, $weekday, $offset=1)
{
$month_ts = strtotime("$year-$month-01");
if(--$offset > 0)
$month_ts = strtotime("+$offset week", $month_ts);
$month_ts = strtotime($weekday, $month_ts);
return $month_ts;
}
echo date('d M Y', find_weekday(5, 2000, "Friday")) . "";
echo date('d M Y', find_weekday(5, 2000, "Friday", 1)) . "";
echo date('d M Y', find_weekday(5, 2000, "Fri", 2)) . "";
echo date('d M Y', find_weekday(5, 2000, "Friday", 3)) . "";
echo date('d M Y', find_weekday(5, 2000, "Friday", 4));
?>