- <?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";
来源: http://www.phpxs.com/code/1003477/