PHP计算日期间隔天数:
function diffBetweenTwoDays ($day1, $day2){  $second1 = strtotime($day1);  $second2 = strtotime($day2);  if ($second1 < $second2) {    $tmp = $second2;    $second2 = $second1;    $second1 = $tmp;  }  return ($second1 - $second2) / 86400;}PHP指定日期范围循环输出日期示例:
$date1="2021-11-01";//开始日期$date2="2021-11-16";//结束日期$days = 
diffBetweenTwoDays($date1, $date2);for ($me= 0;$me<=$days; $me++){    代码段...}