<?php$shamsiDate = '1394-06-01';$shamsiDate = explode( '-' , $shamsiDate );$futureDate = jalali_to_gregorian($shamsiDate[0],$shamsiDate[1],$shamsiDate[2],'-');$d = new DateTime($futureDate);echo $d->diff(new DateTime())->format('%a');function jalali_to_gregorian($j_y,$j_m,$j_d,$mod=''){...