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run code in 150+ php & hhvm versions
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<?php $start = strtotime('2014-09-01'); $end = strtotime('2014-10-01'); $stamp = $start; $months = array(); $i=0; do { $next_stamp = mktime(0,0,-1, date('n',$stamp)+1, 1, date('Y',$stamp)); var_dump(date('Y-m-d H:i:s', $next_stamp));; //$next_stamp = min($next_stamp, $end); $months[] = (($next_stamp-$stamp)/3600/24)/date('t', $stamp); $stamp = $next_stamp; if ($i>10) die(); $i++; } while ($stamp < $end); var_dump($months);
based on VouT9
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59" string(19) "2014-09-30 23:59:59"