Question

当我这样做时：

root

我收到了这个输出：

$date = "2017-02-06 21:30:00";
$end_date = "2017-02-28 21:30:00";
while (strtotime($date) <= strtotime($end_date)) {
    echo $date."<br />";
    $date = date("Y-m-d h:i:s", strtotime("+7 day", strtotime($date)));
}

知道为什么+ 7天短缺12小时？

Answer 1

有区别

显示小时01到12
```
date('h'); 
```
显示小时00到23
```
date('H');
```

有关它的更多信息：http://php.net/manual/en/function.date.php

你的代码应该是：

$date = "2017-02-06 21:30:00";
$end_date = "2017-02-28 21:30:00";
while (strtotime($date) <= strtotime($end_date)) {
    echo $date."<br />";
    $date = date("Y-m-d H:i:s", strtotime("+7 day", strtotime($date)));
}

Answer 2

不是，你用以下方式显示它：

date("Y-m-d h:i:s",$time); // as h stands for 12-hour format of an hour with leading zeros  01 through 12

使用H代替：

date("Y-m-d H:i:s",$time); // as H stands for 24-hour format of an hour with leading zeros  00 through 23

在PHP中添加7天会错误地计算时间

2 个答案: