blocks|key|1175281|text|if+(strtotime("2008-02-16+12:59:57")+>=+time()+-+24+*+60+*+60)
{+/*LESS*/+}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1175282|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>if (strtotime("2008-02-16 12:59:57") &gt;= time() - 24 * 60 * 60)
{ /*LESS*/ }
</code></pre>

blocks|key|1175330|text|只需添加另一个答案，使用strtotime的相对日期：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1175331|$date+=+'2008-02-16+12:59:57';
if+(strtotime("$date+%2B1+day")+<=+time())+{
++++//+Do+something
}|code-block|syntax|javascript|1175332|我认为这会使代码更具可读性。|1175333|entityMap^0|C|9|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Just adding another answer, using <code>strtotime</code>'s relative dates:

<pre><code>$date = '2008-02-16 12:59:57';
if (strtotime("$date +1 day") &lt;= time()) {
 // Do something
}
</code></pre>

I think this makes the code much more readable.

blocks|key|1175244|text|if+((time()+-+strtotime("2008-02-16+12:59:57"))+<+24*60*60)+{
++//+less+than+24+hours+ago
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1175245|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>if ((time() - strtotime("2008-02-16 12:59:57")) &lt; 24*60*60) {
 // less than 24 hours ago
}
</code></pre>

blocks|key|1390714|text|例如通过strtotime和time()。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1390715|差值必须小于86400+(每天秒数)。|1390716|<?php
echo+'now:+',+date('Y-m-d+H:i:s'),+"\n";
foreach(+array('2008-02-16+12:59:57',+'2009-12-02+13:00:00',+'2009-12-02+20:00:00')+as+$input+)+{
++$diff+=+time()-strtotime($input);
++echo+$input,+'+',+$diff,+"+",+$diff+<+86400+?+'%2B':'-',+"\n";
}|code-block|syntax|javascript|1390717|打印|1390718|now:+2009-12-03+18:02:29
2008-02-16+12:59:57+56696552+-
2009-12-02+13:00:00+104549+-
2009-12-02+20:00:00+79349+%2B|1390719|只有最后的测试日期/时间在过去的24小时内。|1390720|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/strotime^0|4|9|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|13|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|15|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]]]

e.g. via <a href="http://php.net/strotime" rel="nofollow noreferrer">strtotime</a> and time(). 
The difference must be less then 86400 (seconds per day).

<pre><code>&lt;?php
echo 'now: ', date('Y-m-d H:i:s'), "\n";
foreach( array('2008-02-16 12:59:57', '2009-12-02 13:00:00', '2009-12-02 20:00:00') as $input ) {
 $diff = time()-strtotime($input);
 echo $input, ' ', $diff, " ", $diff &lt; 86400 ? '+':'-', "\n";
}
</code></pre>

prints

<pre><code>now: 2009-12-03 18:02:29
2008-02-16 12:59:57 56696552 -
2009-12-02 13:00:00 104549 -
2009-12-02 20:00:00 79349 +
</code></pre>

only the last test date/time lays less than 24 hours in the past.

blocks|key|1175277|text|Php有一个comparison+function+between+two+date/time+objects，但我并不是很喜欢它。它可能是不精确的。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1175278|我所做的是使用strtotime()从date对象中生成一个unix时间戳，然后将其与time()的输出进行比较。|1175279|entityMap|0|LINK|mutability|MUTABLE|url|http://www.php.net/manual/en/datetime.diff.php^0|6|1D|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

Php has a <a href="http://www.php.net/manual/en/datetime.diff.php" rel="nofollow noreferrer">comparison function between two date/time objects</a>, but I don't really like it very much. It can be imprecise.

What I do is use strtotime() to make a unix timestamp out of the date object, then compare it with the output of time().

blocks|key|1175406|text|使用它就行了.|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1175407|if(strtotime($date_start)+>=+strtotime($currentDate))
{
//+Your+code
}|code-block|syntax|javascript|1175408|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|$]]

Just use it.....

<pre><code>if(strtotime($date_start) &gt;= strtotime($currentDate))
{
// Your code
}
</code></pre>

blocks|key|1175478|text|应该有像这样的变量日期|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1175479|$date_value+=+"2013-09-12";
$Current_date+=+date("Y-m-d");+OR+$current_date_time_stamp+=+time();|code-block|syntax|javascript|1175480|您可以在将日期转换为时间戳之后比较这两个日期，因此：|1175481|if(strtotime($current_date)+>=+strtotime($date_value))+{
+echo+"current+date+is+bigger+then+my+date+value";
}|1175482|或|1175483|if($current_date_time_stamp+>=+strtotime($date_value))+{
+echo+"current+date+is+bigger+then+my+date+value";
}|1175484|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

There should be you variable date Like

<pre><code>$date_value = "2013-09-12";
$Current_date = date("Y-m-d"); OR $current_date_time_stamp = time();
</code></pre>

You can Compare both date after convert date into time-stamp so :

<pre><code>if(strtotime($current_date) &gt;= strtotime($date_value)) {
 echo "current date is bigger then my date value";
}
</code></pre>

OR

<pre><code>if($current_date_time_stamp &gt;= strtotime($date_value)) {
 echo "current date is bigger then my date value";
}
</code></pre>

blocks|key|1390969|text|也许它会更容易理解。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1390970|$my_date++++++++=+'2008-02-16+12:59:57';
$one_day_after++=+date('Y-m-d+H:i:s',+strtotime('2008-02-16+12:59:57+%2B1+days'));

if($my_date+<+$one_day_after)+{
echo+$my_date+.+"+is+less+than+24+hours+ago!";
}+else+{
echo+$my_date+.+"+is+more+than+24+hours+ago!";
}|code-block|syntax|javascript|1390971|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|$]]

Maybe it will be more easy to understand...

<pre><code>$my_date = '2008-02-16 12:59:57';
$one_day_after = date('Y-m-d H:i:s', strtotime('2008-02-16 12:59:57 +1 days'));

if($my_date &lt; $one_day_after) {
echo $my_date . " is less than 24 hours ago!";
} else {
echo $my_date . " is more than 24 hours ago!";
}
</code></pre>

blocks|key|1391004|text|您可以使用简单的PHP来完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1391005|$date+=+new+simpleDate();
echo+$date->now()->subtractHour(24)->compare('2008-02-16+12:59:57')->isBefore();|code-block|syntax|javascript|1391006|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|$]]

You can use Simple PHP to do this:

<pre><code>$date = new simpleDate();
echo $date-&gt;now()-&gt;subtractHour(24)-&gt;compare('2008-02-16 12:59:57')-&gt;isBefore();
</code></pre>

How would I check if a date in the format "2008-02-16 12:59:57" is less than 24 hours ago?

PHP date comparison

如何检查"2008-02-16 12:59:57“格式的日期是否少于24小时？

问PHP日期比较
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回答 9

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