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Closed 11 years ago.

我要求一个algo/idea解决我的问题。情况是:

due date is Nov 21, 2011
current date is Nov 18, 2011
3 days before the due date, I want an image to appear on the div [days is dynamic]

因此,第18号,2011年,四版已经成像,第二天,新19号,2011年,四版在2011年20号创新上的形象和相同情景。但截至2011年11月17日,无遗体形象。

我如何用购买力平价来做到这一点? 不要忘记四分五裂的形象。我这样做了。只是日期的条件。

anyone who can give me algo/idea? only algo/idea.. Thanks, Justin

Answer 1

http://us.php.net/manual/en/Function.mktime.php“rel=“nofollow”>mktime 或

$date_diff = 60*60*24*3; // 3 days
// time()+$date_diff will be a timestamp 3 days in the future
if ($due_date < time()+$date_diff) {
    echo "less than 3 days left!";
}

Answer 2

http://www.php.net/manual/en/Function.time.php“rel=“nofollow” http://www.php.net/manual/en/Function.time.php!

例1

<?php
$nextWeek = time() + (7 * 24 * 60 * 60);
                   // 7 days; 24 hours; 60 mins; 60secs
echo  Now:        . date( Y-m-d ) ."
";
echo  Next Week:  . date( Y-m-d , $nextWeek) ."
";
// or using strtotime():
echo  Next Week:  . date( Y-m-d , strtotime( +1 week )) ."
";
?>

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