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在PHP里得到前天和昨天的日期的代码_php技巧

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Release: 2016-05-17 09:39:06
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前天去面试的时候也是这样,不过我当时记不起来了.就记得MYSQL里面的date_sub(now(),'interval 1 day');date('Y/m/d h:i:s',mktime(date('h'), date('i'), date('s'), date('m')  , date('d')+1, date('Y')));



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先得到今天的UNIXTIME
然后减去一天或两天的秒数
把减后的UNIXTIME格式化成日期。

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CODE:[Copy to clipboard]date_default_timezone_set('Asia/Shanghai');
#昨天
echo date("Y/m/d h:i:s",time()-24*60*60);
echo "
";
#前天
echo date("Y/m/d h:i:s",time()-2*24*60*60);
?>


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up

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方法有很多种啊, 我也介绍一种吧: 

date("Y/m/d H:i:s", strtotime("1 days ago"));
date("Y/m/d H:i:s", strtotime("2 days ago"));

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date("Y/m/d H:i:s",mktime(0,0,0,date("m"),date("d")-1,date("Y")));

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以前算时间总是很烦人,呵呵,学了了下,下面是下个星期现在的时间。
date_default_timezone_set('Asia/Shanghai');
$tmp = time()+60*60*24*7;
print date("m/d/Y H:i:s", $tmp);

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再加一个:
$time_yes=localtime(time()-24*60*60, true);
$time_b_yes=localtime(time()-2*24*60*60, true);
$yesterday=$time_yes['tm_mday'];
$the_day_before_yes=$time_b_yes['tm_mday'];

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time()-86400  昨天的

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高手如云那

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QUOTE:
原帖由 hutule110 于 2007-3-22 09:51 发表
date("Y/m/d H:i:s",mktime(0,0,0,date("m"),date("d")-1,date("Y"))); 
这个好啊!

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//昨天
print date('Y-m-d' , strtotime('-1 day'));

//上星期
print date('Y-m-d' , strtotime('-1 week'));

//上个月
print date('Y-m-d' , strtotime('-1 month'));

//去年
print date('Y-m-d' , strtotime('-1 year'));
?>

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QUOTE:
原帖由 hutule110 于 2007-3-22 09:51 发表
date("Y/m/d H:i:s",mktime(0,0,0,date("m"),date("d")-1,date("Y"))); 
调用函数次数 多了些

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strtotime得到一个时间戳, 然后你自己格式化.
strtotime('yesterday');
strtotime('-2 day');

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