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<?php $start = strtotime('2014-09-15'); $end = strtotime('2014-11-15'); $stamp = $start; $months = array(); do { $next_stamp = mktime(0,0,0, date('n',$stamp)+1, 1, date('Y',$stamp)); //$next_stamp = min($next_stamp, $end); $months[] = date('Y-m-d H:i:s', $next_stamp)." ".date('Y-m-d H:i:s', $stamp).floor(($next_stamp-$stamp)/3600/24)/date('t', $stamp)." ".date('t', $stamp)." ".($next_stamp-$stamp); $stamp = $next_stamp; } while ($stamp <= $end); var_dump($months);

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