Question

我正在编写一个脚本，该脚本检查日期是否增加，以了解是否向现有变量中添加值。尽管我已经能够在这里获得一些帮助，但看来我仍然无法检查一天是否有所增加。

PHP代码

<?php
 $now = time(); // or your date as well
 $your_date = strtotime("2018-09-05");
 $datediff = $now - $your_date;

 $alreadySpentDays = round($datediff / (60 * 60 * 24));

 $userEarnings = 0;

 // i want to be able to check if the day has increased and if it has i want to be able to add $10 to userEarning variable daily
?>
<p><?=$userEarnings?></p>

Answer 1

每天计算都没有意义，只要需要就可以进行计算。
$ start_date是您要开始计算的日期，收入为0。
然后只需计算过去的天数并乘以10。

$now = time(); // or your date as well
$start_date = strtotime("2018-09-04");
$datediff = $now - $start_date;

$alreadySpentDays = round($datediff / (60 * 60 * 24));
echo $alreadySpentDays * 10; // 20, since it's two days of earnings (september 4 and 5)

Answer 2

使用DateTime :: diff（http://php.net/manual/en/datetime.diff.php）

$userEarnings = 0;
$now = new DateTime(); //now
$your_date = new DateTime("2010-09-05");

$diff = $now->diff($your_date);

if ($diff->days > 0) {
    $userEarnings += 10;
}

如何检查值是增加还是增加-PHP

2 个答案: