Determining the first business day of any given month in PHP

For an automated script we needed to calculate the first business day of the month. That turned out to be somewhat of a challenge. Here’s the code we came up with: (Inspired by Gledison’s last business day of the week!)


function FirstBusinessDay($year, $month, $day)
{
   $today = "$year-$month-$day";
   $fbday = 1;
   $wday = date("N",strtotime("$year-$month-$fbday"));
   if ($wday == 6) $fbday += 2; // saturday?
   if ($wday == 7) $fbday += 1; // sunday?
   $fbday = date("Y-m-d",strtotime("$year-$month-$fbday"));
   if ($fbday == $today) {
      return true;
   } else {
      return false;
   }
}