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<?php function calcDays($startdate, $enddate) { $first = $startdate < $enddate ? $startdate : $enddate; $second = $startdate < $enddate ? $enddate : $startdate; $inbetween = $second - $first; $minute = 60; $hour = $minute * 60; $day = $hour * 24; $week = $day * 7; $days = floor($inbetween / 60 / 60 / 24); $hours = floor($inbetween / 60 / 60 - $days * $day / $hour); $minutes = floor($inbetween / 60); $seconds = $inbetween / $minutes; return $days . " " . $hours . " " . $minutes . " " . $seconds; } echo calcDays(1388386746, 1388390426);

preferences:
68.84 ms | 402 KiB | 5 Q