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run code in 150+ php & hhvm versions
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<?php function calcDays($startdate, $enddate) { $first = $startdate < $enddate ? $startdate : $enddate; $second = $startdate < $enddate ? $enddate : $startdate; $inbetween = $second - $first; $i[0] = 60; $i[1] = 24; $i[2] = 7; $i[3] = date('t', strtotime('-1 month', $second)); $i[4] = date('L', strtotime('-1 year', $second)) ? 366 : 365; $i[5] = array(31, (date('L', strtotime('-1 year', $second)) ? 28 : 29), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); $months = 0; $days = 0; $temp = floor($inbetween / $i[0] / $i[0] / $i[1]); $tempDays = floor($temp % 365); $tempMonth = date('n', strtotime('-1 year', $second)) - 1; for($n = 0; $n < 12; $n++) { if($tempDays >= $i[5][$tempMonth]) { $months += 1; $tempDays -= $i[5][$tempMonth]; } else { $days = $tempDays; break; } $tempMonth = $tempMonth < 10 ? $tempMonth + 1 : 0; } $years = floor(date('Y', $second) - date('Y', $first) + $months / 12); $months = $months % 12; $hours = floor($inbetween / $i[0] / $i[0] % $i[1]); $minutes = floor($inbetween / $i[0] % $i[0]); $seconds = $inbetween % $i[0]; $dateObj = new stdClass(); $dateObj->years = $years; $dateObj->months = $months; $dateObj->days = $days; $dateObj->hours = $hours; $dateObj->minutes = $minutes; $dateObj->seconds = $seconds; return $dateObj; } $mydate = calcDays(1388534400, 1391212800); echo $mydate->years;
Output for 4.3.0 - 7.1.0
0