PHP:检查自时间戳以来是否已经过了一周

Question

我们假设:

$time = '2010-05-17 02:49:30' // (retrieved from MySQL TIMESTAMP field)

如何在PHP中执行以下操作:

1)检查自此时间过后是否超过一周？

2)假设(1)上的"假",找出在一周标记之前还有多少时间,四舍五入到剩余的日期和小时.

我知道这很简单,但它使用了非常具体的语法.从来没有玩过时间计算,我很感激一些指导.

谢谢!

Answer 1

$time = strtotime('2010-05-10 02:49:30');
$one_week_ago = strtotime('-1 week');

if( $time > $one_week_ago ) { 
    // it's sooner than one week ago
    $time_left = $time - $one_week_ago;
    $days_left = floor($time_left / 86400); // 86400 = seconds per day
    $hours_left = floor(($time_left - $days_left * 86400) / 3600); // 3600 = seconds per hour
    echo "Still $days_left day(s), $hours_left hour(s) to go.";
}

Answer 2

没有strtotime让你做这样的事情......

$timestamp = strtotime($time);
$oneweekago = strtotime("-1 week");
if($oneweekago<=$timestamp) {
    // it's been less than one week
    $secondsleft = $oneweekago - $timestamp;
    // ...
}