Online PHP editor | refs for lssdn

<?php $lastmonday = strtotime('last monday of this month'); $lmonday = date('Y-m-d',$lastmonday); $firstday = strtotime('first day of this month'); $fday = date('Y-m-d',$firstday); $d1 = new DateTime($lmonday); $dd1 = $d1->format('Y-m-d'); $d2 = new DateTime($fday); $dd2 = $d2->format('Y-m-d'); $period_serv = $dd1->diff($dd2); echo $period_serv->format('%a'); //echo $theperiod;