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PHP如何表示某一个时间的前一天12点

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2016-06-13 12:24:101428browse

PHP怎么表示某一个时间的前一天12点

某个时间的前一天12点，  怎么用PHP算出来

某个时间为变量。
------解决思路----------------------

<?php<br /><br />date_default_timezone_set('PRC');<br /><br />$now = time(); //某个时间,可以是任意时间戳<br />$ago = strtotime('-1 day 12:00:00', $now); //一天前的12:00:00的时间戳，两天前-2 day即可<br /><br />echo date('Y-m-d H:i:s', $ago);

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