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<?php /** * 求两个日期之间相差的天数 * (针对1970年1月1日之后,求之前可以采用泰勒公式) * @param string $day1 * @param string $day2 * @return number */ function diffBetweenTwoDays ($day1, $day2) { $second1 = strtotime($day1); $second2 = strtotime($day2); if ($second1 < $second2) { $tmp = $second2; $second2 = $second1; $second1 = $tmp; } return ($second1 - $second2) / 86400; } $day1 = "2013-07-27"; $day2 = "2013-08-04"; $diff = diffBetweenTwoDays($day1, $day2); echo $diff."\n";
/** * 返回相差的月份数量 * @param $date1 string 开始日期 * @param $date2 string 结束日期 * @return float|int */ function getMonthNum($date1,$date2){ $date1_stamp=strtotime($date1); $date2_stamp=strtotime($date2); list($date_1['y'],$date_1['m'])=explode("-",date('Y-m',$date1_stamp)); list($date_2['y'],$date_2['m'])=explode("-",date('Y-m',$date2_stamp)); return abs($date_1['y']-$date_2['y'])*12 +$date_2['m']-$date_1['m']; }
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2022-07-30
2022-08-18
2022-08-16
2022-11-06
2022-08-18
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