blocks|key|1438971|text|您可以使用strtotime()来完成此操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1438972|$diff+=+strtotime('2009-10-05+18:11:08')+-+strtotime('2009-10-05+18:07:13')|code-block|syntax|javascript|1438973|对于DateTime对象，类似的方法也是可能的。|1438974|$date+=+new+DateTime(+'2009-10-05+18:07:13'+);
$date2+=+new+DateTime(+'2009-10-05+18:11:08'+);

$diff+=+$date2->getTimestamp()+-+$date->getTimestamp();|1438975|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/strtotime^0|5|B|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|C|$G|H]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

You can use <a href="http://php.net/strtotime" rel="noreferrer">strtotime()</a> to do that:

<pre><code>$diff = strtotime('2009-10-05 18:11:08') - strtotime('2009-10-05 18:07:13')
</code></pre>

A similar approach is possible with DateTime objects, e.g.

<pre><code>$date = new DateTime( '2009-10-05 18:07:13' );
$date2 = new DateTime( '2009-10-05 18:11:08' );

$diff = $date2-&gt;getTimestamp() - $date-&gt;getTimestamp();
</code></pre>

blocks|key|1439087|text|对于DateTime对象，您可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1439088|$date+=+new+DateTime(+'2009-10-05+18:07:13'+);
$date2+=+new+DateTime(+'2009-10-05+18:11:08'+);

$diffInSeconds+=+$date2->getTimestamp()+-+$date->getTimestamp();|code-block|syntax|javascript|1439089|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|$]]

With DateTime objects, you can do it like this:

<pre><code>$date = new DateTime( '2009-10-05 18:07:13' );
$date2 = new DateTime( '2009-10-05 18:11:08' );

$diffInSeconds = $date2-&gt;getTimestamp() - $date-&gt;getTimestamp();
</code></pre>

blocks|key|1224244|text|PHP+Date+Time+reference对下面这样的事情很有帮助：PHP+Date+Time+Functions|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1224245|strtotime()可能是最好的方式。|1224246|$seconds+=+strtotime('2009-10-05+18:11:08')+-+strtotime('2009-10-05+18:07:13')|code-block|syntax|javascript|1224247|entityMap|0|LINK|mutability|MUTABLE|url|http://us2.php.net/manual/en/ref.datetime.php|1|http://php.net/strtotime^0|10|N|0|0|0|B|1|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|F|3|G|5|H|7|12|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|13|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]|S|$5|N|O|P|C|$Q|T]]]]

PHP Date Time reference is helpful for things like this: <a href="http://us2.php.net/manual/en/ref.datetime.php" rel="noreferrer">PHP Date Time Functions</a>

<a href="http://php.net/strtotime" rel="noreferrer">strtotime()</a> is probably the best way.

<pre><code>$seconds = strtotime('2009-10-05 18:11:08') - strtotime('2009-10-05 18:07:13')
</code></pre>

blocks|key|1224421|text|对于那些担心使用时间戳的限制的人(即使用1970年之前和2038年之后的日期)，您可以简单地计算秒的差异，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1224422|$start+=+new+DateTime('2009-10-05+18:11:08');
$end+=+new+DateTime('2009-10-05+18:07:13');
$diff+=+$end->diff($start);

$daysInSecs+=+$diff->format('%25r%25a')+*+24+*+60+*+60;
$hoursInSecs+=+$diff->h+*+60+*+60;
$minsInSecs+=+$diff->i+*+60;

$seconds+=+$daysInSecs+%2B+$hoursInSecs+%2B+$minsInSecs+%2B+$diff->s;

echo+$seconds;+//+output:+235|code-block|syntax|javascript|1224423|为那些对阅读更多感兴趣的人写了一个blog+post。|offset|length|1224424|entityMap|0|LINK|mutability|MUTABLE|url|https://www.designcise.com/web/tutorial/how-to-get-the-datetime-difference-in-seconds-between-two-datetime-objects-in-php^0|0|0|H|9|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

For those worrying about the limitations of using timestamps (i.e. using dates before 1970 and beyond 2038), you can simply calculate the difference in seconds like so:
<pre><code>$start = new DateTime('2009-10-05 18:11:08');
$end = new DateTime('2009-10-05 18:07:13');
$diff = $end-&gt;diff($start);

$daysInSecs = $diff-&gt;format('%r%a') * 24 * 60 * 60;
$hoursInSecs = $diff-&gt;h * 60 * 60;
$minsInSecs = $diff-&gt;i * 60;

$seconds = $daysInSecs + $hoursInSecs + $minsInSecs + $diff-&gt;s;

echo $seconds; // output: 235
</code></pre>
Wrote a <a href="https://www.designcise.com/web/tutorial/how-to-get-the-datetime-difference-in-seconds-between-two-datetime-objects-in-php" rel="noreferrer">blog post</a> for those interested in reading more.

blocks|key|1224187|text|strtotime("2009-10-05+18:11:08")+-+strtotime("2009-10-05+18:07:13")|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1224188|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>strtotime("2009-10-05 18:11:08") - strtotime("2009-10-05 18:07:13")
</code></pre>

blocks|key|1224366|text|如果您需要实际的本地时差并希望使用getTimestamp，则必须将计算周期内的DST开关考虑在内。因此，公式中必须包括UTC的本地偏移。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1224367|以以下日期为例：|1224368|$tz+=+new+\DateTimeZone("Europe/Berlin");
$start+=+new+\DateTime("2018-02-01+12:00:00",+$tz);
$end+=+new+\DateTime("2018-04-01+12:00:00",+$tz);|code-block|syntax|javascript|1224369|协调世界时$start为"2018-02-01+11:00:00“，协调世界时$end为"2018-04-01+10:00:00”。请注意，虽然柏林时区的一天中的时间是相同的，但在UTC中却不同。协调世界时的偏移量在$start为1小时，在$end为2小时。|1224370|请记住，getTimestamp总是返回UTC！因此，在查找实际的局部差异时，必须从时间戳中减去偏移量。|1224371|//+WRONG!+returns+5094000,+one+hour+too+much+due+to+DST+in+the+local+TZ
echo+$end->getTimestamp()+-+$start->getTimestamp();

//+CORRECT:+returns+5090400
echo+($end->getTimestamp()+-+$end->getOffset())+-+($start->getTimestamp()+-+$start->getOffset());|1224372|entityMap^0|H|C|0|0|0|5|6|13|4|30|6|3C|4|0|4|C|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]|$9|14|A|15|B|C]|$9|16|A|17|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|J|7|1B|8|@]|D|@]|E|$K|L]]|$1|S|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|T|$]]

If you need the real local time difference and want to work with <code>getTimestamp</code>, you must take DST switches during the calculated period into account. Therefore, the local offset to UTC must be included in the equation.

Take, for instance, the following dates:

<pre><code>$tz = new \DateTimeZone("Europe/Berlin");
$start = new \DateTime("2018-02-01 12:00:00", $tz);
$end = new \DateTime("2018-04-01 12:00:00", $tz);
</code></pre>

<code>$start</code> is "2018-02-01 11:00:00" in UTC, while <code>$end</code> is "2018-04-01 10:00:00" in UTC. Note that, while the time of day is the same in the Berlin timezone, it is different in UTC. The UTC offset is one hour in <code>$start</code> and 2 hours in <code>$end</code>. 

Keep in mind that <code>getTimestamp</code> always returns UTC! Therefore you must subtract the offset from the timestamp when looking for the actual local difference.

<pre><code>// WRONG! returns 5094000, one hour too much due to DST in the local TZ
echo $end-&gt;getTimestamp() - $start-&gt;getTimestamp();

// CORRECT: returns 5090400
echo ($end-&gt;getTimestamp() - $end-&gt;getOffset()) - ($start-&gt;getTimestamp() - $start-&gt;getOffset());
</code></pre>

blocks|key|1439126|text|一个简单而准确的解决方案(例举Nilz11的评论)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1439127|$hiDate+=+new+DateTime("2310-05-22+08:33:26");
$loDate+=+new+DateTime("1910-11-03+13:00:01");
$diff+=+$hiDate->diff($loDate);
$secs+=+((($diff->format("%25a")+*+24)+%2B+$diff->format("%25H"))+*+60+%2B+
+++$diff->format("%25i"))+*+60+%2B+$diff->format("%25s");|code-block|syntax|javascript|1439128|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|$]]

A simple and exact solution (exemplifying Nilz11's comment):

<pre><code>$hiDate = new DateTime("2310-05-22 08:33:26");
$loDate = new DateTime("1910-11-03 13:00:01");
$diff = $hiDate-&gt;diff($loDate);
$secs = ((($diff-&gt;format("%a") * 24) + $diff-&gt;format("%H")) * 60 + 
 $diff-&gt;format("%i")) * 60 + $diff-&gt;format("%s");
</code></pre>

2009-10-05 18:11:08

2009-10-05 18:07:13

This should generate 235,how to do it ?

Get interval seconds between two datetime in PHP?

2009-10-05 18:11:082009-10-05 18:07:13这应该生成235，该怎么做呢？

问在PHP中获取两个datetime之间的间隔秒？
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问在PHP中获取两个datetime之间的间隔秒？
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