blocks|key|5357632|text|最简单的方法是使用mktime转换所需的日期和时间(最后日期和最终截止日期)，然后直接将当前time与这些日期和时间进行比较。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|5357633|entityMap|0|LINK|mutability|MUTABLE|url|http://www.php.net/mktime|1|http://www.php.net/time^0|9|6|0|1A|4|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

The easiest way would be to use <a href="http://www.php.net/mktime" rel="nofollow">mktime</a> to convert the required date and times (the last date and the ultimate deadline) and then directly compare the current <a href="http://www.php.net/time" rel="nofollow">time</a> against the those.

blocks|key|2237309|text|我强烈建议您查阅DateTime类文档；如果您对此不感兴趣，string+slice也可以。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2237310|entityMap|0|LINK|mutability|MUTABLE|url|http://www.php.net/manual/en/class.datetime.php|1|http://php.net/manual/en/function.substr.php^0|8|8|0|U|C|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

I would strongly recommend you look up on the <a href="http://www.php.net/manual/en/class.datetime.php" rel="nofollow">DateTime</a> class documentation; if you're not interested though; a <a href="http://php.net/manual/en/function.substr.php" rel="nofollow">string slice</a> would work.

blocks|key|5357696|text|你可以使用mktime+(或strotime，如果你能以正确的格式获得结束日期，17-02-2011或02/17/2011)：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5357697|$mydate+=+'17/02/2011';
$mydate_parts+=+explode('/',+$mydate);
$mydate_timestamp+=+mktime(0,+0,+0,+$mydate_parts[1],+$mydate_parts[0],+$mydate_parts[2]);

if($mydate+==+date('d/m/Y'))
{
++++echo+'last+day+to+reply';
}
elseif($mydate_timestamp+<+time())
{
++++echo+'post+has+expired+and+you+cannot+reply';

}
else
{
++++echo+'post+has+NOT+expired+and+you+can+reply';
}|code-block|syntax|javascript|5357698|entityMap^0|5|6|E|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

You can use <code>mktime</code> (or <code>strotime</code> if you can get your end date in a proper format, 17-02-2011 or 02/17/2011):

<pre><code>$mydate = '17/02/2011';
$mydate_parts = explode('/', $mydate);
$mydate_timestamp = mktime(0, 0, 0, $mydate_parts[1], $mydate_parts[0], $mydate_parts[2]);

if($mydate == date('d/m/Y'))
{
 echo 'last day to reply';
}
elseif($mydate_timestamp &lt; time())
{
 echo 'post has expired and you cannot reply';

}
else
{
 echo 'post has NOT expired and you can reply';
}
</code></pre>

blocks|key|3246224|text|最简单的方法是将日期设置为正确的格式。尤其是如果它来自数据库。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3246225|<?php

++++$mydate+=+'2010-01-26';
++++$curdate+=+date('Y-m-d');

++++if($curdate+==+$mydate)
++++{
++++++++echo+'last+day+to+reply';
++++}
++++elseif($curdate+>+$mydate)
++++{
++++++++echo+'post+has+expired+and+you+cannot+reply';
++++}
++++else
++++{
++++++++echo+'post+has+NOT+expired+and+you+can+reply';
++++}

?>|code-block|syntax|javascript|3246226|请注意，通过阅读这段代码，您将可以很容易地理解它的用途。|3246227|它几乎是自然语言，不言自明。|3246228|与这里的所有其他代码不同。|3246229|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

the easiest way is to have a date already in the proper format. Especially if it's coming from database. 

<pre><code>&lt;?php

 $mydate = '2010-01-26';
 $curdate = date('Y-m-d');

 if($curdate == $mydate)
 {
 echo 'last day to reply';
 }
 elseif($curdate &gt; $mydate)
 {
 echo 'post has expired and you cannot reply';
 }
 else
 {
 echo 'post has NOT expired and you can reply';
 }

?&gt;
</code></pre>

note that by reading this code you will have no problem understanding what does it do. 
it's almost natural language and self-explanatory 
unlike all other codes here.

blocks|key|3246233|text|与比较可视化日期相比，比较时间戳可能更好：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3246234|$deadline+=+strtotime('2010-01-26');
$today+=+mktime(0,+0,+0);
if+($today+==+$deadline)+{
+++echo+'last+day';
}
else+if+($today+>+$deadline)+{
+++echo+'past+day';
}
else+{
+++echo+'a-okay';
}|code-block|syntax|javascript|3246235|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Rather than compare visual dates it's probably better to compare timestamps:

<pre><code>$deadline = strtotime('2010-01-26');
$today = mktime(0, 0, 0);
if ($today == $deadline) {
 echo 'last day';
}
else if ($today &gt; $deadline) {
 echo 'past day';
}
else {
 echo 'a-okay';
}
</code></pre>

blocks|key|2237339|text|用简单的术语来说，你会想要做一些事情，比如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2237340|if+(strtotime($date)+>+date())+{+echo“您的帖子已过期”；}|2237341|比较字符串中的日期是非常困难的，特别是当你考虑到"2/3/4“可能是8个不同的日期中的任何一个(2004年2月3日，04年3月4日，02年3月，等等)。在PHP中将日期/时间作为实际的时间戳值可以使比较变得容易得多。|2237342|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

In simplistic terms, you'd want to do somethinn like:

if (strtotime($date) > date()) {
 echo "Your post has expired";
}

it's very difficult to compare dates-that-are-strings, especially when you consider that "2/3/4" could be any of 8 different dates (Feb 3rd, '04; Mar 4th, '02; etc..). Keeping dates/times as actual timestamp values in PHP makes the comparisons far easier.

blocks|key|5357779|text|下面的内容对你来说可能是最快的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5357780|if(+mktime(0,0,0,substr($mydate,+3,+2),+substr($mydate,+0,+2),+substr($mydate,+6,+4)+)+>+time()+)|code-block|syntax|javascript|5357781|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Something along the lines of the following is probably the quickest for you.

<pre><code>if( mktime(0,0,0,substr($mydate, 3, 2), substr($mydate, 0, 2), substr($mydate, 6, 4) ) &gt; time() )
</code></pre>

I have a date like this: 16/02/2011

What I want to do is have a simple PHP conditional that checks if todays date is either that DAY or AFTER so for example:

<pre><code>&lt;?php

 $mydate = '26/01/2010';

 if($mydate == date('dd/mm/yyyy')
 {
 echo 'last day to reply';
 }
 elseif($mydate == 'date after todays date')
 {
 echo 'post has expired and you cannot reply';

 }
 else
 {
 echo 'post has NOT expired and you can reply';
 }

?&gt;
</code></pre>

So if today's date is 01/01/2011 then it would say post has not expired
if date is 17/02/2011 then it would say last day to reply
and if the date is after 25/02/2011 then it would say it has expired.

Can anyone help? Thanks :)

PHP: Conditional based on date

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我的日期是这样的: 16/02/2011我想做的是有一个简单的PHP条件来检查todays日期是当天还是之后，例如：<?php $mydate = '26/01/2010'; if($mydate == date('dd/mm/yyyy') { echo 'last day to rep...

问PHP:基于日期的条件
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