if($subday > 0)  {      if($subday == 1)  {   $ntime = gmmktime(0, 0, 0, gmdate('m'), gmdate('d'), gmdate('Y'));   $limitday = $ntime - ($subday * 24 * 3600);   $orwheres[] = " arc.senddate > $limitday ";  }    else if ($subday == 2)  {     $ntime = gmmktime(0, 0, 0, gmdate('m'), gmdate('d'), gmdate('Y'));   $limitday = $ntime - ($subday * 24 * 3600);   $lomitday = $ntime;   $orwheres[] = "  arc.senddate > $lomitday  &&  arc.senddate < $limitday";  }   else if ($subday == 3)  {     $ntime = gmmktime(0, 0, 0, gmdate('m'), gmdate('d'), gmdate('Y'));   $limitday = $ntime -($subday * 24 * 3600)+(1*24 * 3600);   $orwheres[] = " arc.senddate < $limitday ";  }   else if ($subday == 7)  {     $ntime = gmmktime(0, 0, 0, gmdate('m'), gmdate('d'), gmdate('Y'));   $limitday = $ntime - ($subday * 24 * 3600);   $orwheres[] = " arc.senddate > $limitday ";  }  }  }