blocks|key|1349467|text|这是可能的，请参阅ignore_user_abort()|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1349468|set_time_limit(0);
ignore_user_abort(true);

while+(true)+//+forever
{
++++//+your+code
}|code-block|syntax|javascript|1349469|您可以将这两个函数与sleep()、usleep()、time_nanosleep()或更好的-+time_sleep_until()结合使用，以获得类似CRON的效果。|1349470|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.ignore-user-abort.php|1|http://www.php.net/manual/en/function.sleep.php|2|http://php.net/manual/en/function.usleep.php|3|http://www.php.net/manual/en/function.time-nanosleep.php|4|http://www.php.net/manual/en/function.time-sleep-until.php^0|9|J|9|J|0|0|0|A|7|I|8|R|G|1D|I|A|7|1|I|8|2|R|G|3|1D|I|4|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|F|3|G|5|H|7|18|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|19|8|@$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@$9|1I|A|1J|1|1K]|$9|1L|A|1M|1|1N]|$9|1O|A|1P|1|1Q]|$9|1R|A|1S|1|1T]]|E|$]]|$1|M|3|-4|5|6|7|1U|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]|W|$5|P|Q|R|E|$S|X]]|Y|$5|P|Q|R|E|$S|Z]]|10|$5|P|Q|R|E|$S|11]]]]

It's possible, see <a href="http://php.net/manual/en/function.ignore-user-abort.php" rel="nofollow noreferrer"><code>ignore_user_abort()</code></a>:

<pre><code>set_time_limit(0);
ignore_user_abort(true);

while (true) // forever
{
 // your code
}
</code></pre>

You can use this two functions with a combination of <a href="http://www.php.net/manual/en/function.sleep.php" rel="nofollow noreferrer"><code>sleep()</code></a>, <a href="http://php.net/manual/en/function.usleep.php" rel="nofollow noreferrer"><code>usleep()</code></a>, <a href="http://www.php.net/manual/en/function.time-nanosleep.php" rel="nofollow noreferrer"><code>time_nanosleep()</code></a> or even better - <a href="http://www.php.net/manual/en/function.time-sleep-until.php" rel="nofollow noreferrer"><code>time_sleep_until()</code></a> to achieve a CRON-like effect.

blocks|key|5290324|text|PHP脚本在一段时间后超时-它们不是为长时间运行的程序设计的。你得找个办法每隔十分钟戳一次。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5290325|看看set_time_limit吧。|offset|length|5290326|这是来自上面的页面：|5290327|您可以执行set_time_limit(0)；，这样脚本将永远运行-但不建议这样做，并且您的web服务器可能会在强制|5290328|超时(通常在5分钟左右)时发现您。|blockquote|5290329|5290330|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.set-time-limit.php^0|0|2|E|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|F|3|G|5|6|7|10|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|11|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|12|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]]]

PHP scripts timeout after a certain amount of time - they're not designed for long-running programs. You'll have to find some way to prod it every ten minutes.

Have a look at <a href="http://php.net/manual/en/function.set-time-limit.php" rel="nofollow noreferrer">set_time_limit</a>.

This is from the above page:

<blockquote>
 You can do set_time_limit(0); so that the script will run forever - however this is not recommended and your web server might catch you out with an imposed HTTP timeout (usually around 5 minutes).
</blockquote>

blocks|key|5290349|text|也许你可以在你可以访问的计算机上编写另一个脚本，然后让这个脚本周期性地请求另一个脚本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5290350|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Maybe you can write another script on a computer which you have access and then make that script request the other one periodically.

blocks|key|1506699|text|Yop可以看看pnctl_fork。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1506700|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.pcntl-fork.php^0|7|A|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Yop can look at <a href="http://php.net/manual/en/function.pcntl-fork.php" rel="nofollow noreferrer">pnctl_fork</a>.

blocks|key|1355468|text|这是针对你的问题的一个解决方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1355469|//+Anything+before+disconnecting,+but+nothing+to+be+output+to+the+client!
ob_end_clean();
header('Connection:+close');
ob_start();
//+Here+you+can+output+anything+before+disconnecting
echo+"Bla+bla+bla";
$outsize+=+ob_get_length();
header('Content-Length:+'.$outsize);
ob_end_flush();
flush();
//+Do+your+background+processing+here
//+and+feel+free+to+quit+anytime+you+want.|code-block|syntax|javascript|1355470|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|$]]

Here's a hack for your problem:

<pre><code>// Anything before disconnecting, but nothing to be output to the client!
ob_end_clean();
header('Connection: close');
ob_start();
// Here you can output anything before disconnecting
echo "Bla bla bla";
$outsize = ob_get_length();
header('Content-Length: '.$outsize);
ob_end_flush();
flush();
// Do your background processing here
// and feel free to quit anytime you want.
</code></pre>

blocks|key|1349475|text|这样做的一个方法可能是从网页启动一个新的php进程，例如|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1349476|<?php

exec("php+script_that_runs_for_a_while.php+>+/dev/null");

?>|code-block|syntax|javascript|1349477|添加/dev/null意味着(在linux系统上)脚本将完成，而不是等待执行完成。|1349478|因此，启动的脚本可以做任何它喜欢的事情，因为它基本上只是一个在服务器上运行的新进程。|1349479|请注意，在长时间运行的脚本开始时，您需要使用set_time_limit函数将最大执行时间设置为某个较大的值。|1349480|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|$]]

A way to do this might be to launch a new php process from the web page, e.g.

<pre><code>&lt;?php

exec("php script_that_runs_for_a_while.php &gt; /dev/null");

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

Adding the /dev/null means (on a linux system) that your script will complete, rather than waiting for the execution to finish.

So then that script that launches can do whatever it likes, since it is basically just a new process running on the server.

Note that at the start of your long running script, you will want to use the set_time_limit function to set the max execution time to some large value.

I want to have a simple PHP script that loops to do something every ten minutes. It would be hosted offsite, and I would activate it via my browser. I don't have access to the server other than my web space, so 'cron' as such isn't an option.

(I'm happy to have this stop after a certain time or number of job cycles. I just need it to continue running after I point the browser away from the page script.)

Is such a thing possible? Thanks.

PHP loop that runs beyond browser disconnection?

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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我想有一个简单的PHP脚本，循环每十分钟做一些事情。它将在异地托管，我会通过我的浏览器激活它。除了我的web空间之外，我没有访问服务器的权限，所以'cron‘不是一个选项。(我很高兴在特定时间或一定数量的作业周期后停止此操作。我只需要在我将浏览器从页面脚本移开后继续运行。)这样的事情有可能吗？谢谢。

问在浏览器断开连接后运行的PHP循环？
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