如何在PHP中计算两个日期之间的天数？

这是原始的方法

$startTimeStamp = strtotime("2011/07/01");$endTimeStamp = strtotime("2011/07/17");$timeDiff = abs($endTimeStamp - $startTimeStamp);$numberDays = $timeDiff/86400;  // 86400 seconds in one day// and you might want to convert to integer$numberDays = intval($numberDays);