blocks|key|1714203|text|据我所知没有任何可用的东西。下一个最好的办法就是让一个脚本通过CLI执行另一个脚本，但这有点初级。这取决于你想做什么以及它有多复杂，这可能是一个选择，也可能不是。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1714204|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|$]]

There is nothing available that I'm aware of. The next best thing would be to simply have one script execute another via CLI, but that's a bit rudimentary. Depending on what you are trying to do and how complex it is, this may or may not be an option.

blocks|key|1499190|text|您可以使用pcntl_fork()来实现类似于线程的功能。从技术上讲，它是独立的进程，所以两者之间的通信不像线程那么简单，我相信如果apache调用PHP，它就不会工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1499191|entityMap|0|LINK|mutability|MUTABLE|url|http://us3.php.net/pcntl_fork^0|5|C|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]]]]

You can use <a href="http://us3.php.net/pcntl_fork" rel="noreferrer">pcntl_fork()</a> to achieve something similar to threads. Technically it's separate processes, so the communication between the two is not as simple with threads, and I believe it will not work if PHP is called by apache.

blocks|key|1714307|text|以下是Wilco建议的一个示例：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1714308|$cmd+=+'nohup+nice+-n+10+/usr/bin/php+-c+/path/to/php.ini+-f+/path/to/php/file.php+action=generate+var1_id=23+var2_id=35+gen_id=535+>+/path/to/log/file.log+&+echo+$!';
$pid+=+shell_exec($cmd);|code-block|syntax|javascript|1714309|基本上，这将在命令行执行PHP脚本，但会立即返回PID，然后在后台运行。(回声$！确保除PID外不返回任何其他内容。)这允许您的PHP脚本继续或退出，如果你想。当我使用它时，我将用户重定向到另一个页面，在那里每隔5到60秒进行一次AJAX调用，以检查报告是否仍在运行。(我有一个表来存储gen_id和与之相关的用户。)check脚本运行以下内容：|1714310|exec('ps+'+.+$pid+,+$processState);
if+(count($processState)+<+2)+{
+++++//+less+than+2+rows+in+the+ps,+therefore+report+is+complete
}|1714311|这里有一篇关于这项技术的简短文章：http://nsaunders.wordpress.com/2007/01/12/running-a-background-process-in-php/|offset|length|1714312|entityMap|0|LINK|mutability|MUTABLE|url|http://nsaunders.wordpress.com/2007/01/12/running-a-background-process-in-php/^0|0|0|0|0|H|26|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

Here is an example of what Wilco suggested:

<pre><code>$cmd = 'nohup nice -n 10 /usr/bin/php -c /path/to/php.ini -f /path/to/php/file.php action=generate var1_id=23 var2_id=35 gen_id=535 &gt; /path/to/log/file.log &amp; echo $!';
$pid = shell_exec($cmd);
</code></pre>

Basically this executes the PHP script at the command line, but immediately returns the PID and then runs in the background. (The echo $! ensures nothing else is returned other than the PID.) This allows your PHP script to continue or quit if you want. When I have used this, I have redirected the user to another page, where every 5 to 60 seconds an AJAX call is made to check if the report is still running. (I have a table to store the gen_id and the user it's related to.) The check script runs the following:

<pre><code>exec('ps ' . $pid , $processState);
if (count($processState) &lt; 2) {
 // less than 2 rows in the ps, therefore report is complete
}
</code></pre>

There is a short post on this technique here: <a href="http://nsaunders.wordpress.com/2007/01/12/running-a-background-process-in-php/" rel="noreferrer">http://nsaunders.wordpress.com/2007/01/12/running-a-background-process-in-php/</a>

blocks|key|1499345|text|有一个相当晦涩的功能，叫做ticks，很快就会被弃用。我唯一用过它的地方，就是允许脚本捕获SIGKILL+(Ctrl%2BC)并优雅地关闭。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1499346|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.php.net/manual/en/control-structures.declare.php#control-structures.declare.ticks^0|D|5|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]]]]

There is the rather obscure, and soon to be deprecated, feature called <a href="http://docs.php.net/manual/en/control-structures.declare.php#control-structures.declare.ticks" rel="nofollow noreferrer">ticks</a>. The only thing I have ever used it for, is to allow a script to capture SIGKILL (Ctrl+C) and close down gracefully.

blocks|key|1714449|text|您正在搜索的是pcntl_fork()，但它的进程派生而不是线程。所以你会有数据交换的问题。要解决这些问题，您可以使用phps信号函数(+http://www.php.net/manual/de/ref.sem.php+)消息队列可能比共享内存段更容易一些。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1714450|无论如何，我正在开发的web框架中使用的一个策略是并行加载web页面的资源密集型块(可能带有外部请求)：我正在执行一个作业队列，以了解我正在等待什么数据，然后我为每个进程分叉作业。完成后，它们将其数据存储在apc缓存中父进程可以访问的唯一键下。一旦每个数据都在那里，它就会继续。我使用简单的usleep()来等待，因为在apache中进程间通信是不可能的(孩子将失去与父母的连接，并成为僵尸…)。所以这就引出了最后一件事:自杀每个孩子是很重要的！还有一些类可以派生进程但保留数据，我没有检查它们，但zend框架有一个类，它们通常执行缓慢但可靠的代码。你可以在这里找到：http://zendframework.com/manual/1.9/en/zendx.console.process.unix.overview.html我想他们用的是shm段！最后但并非最不重要的是，这个zend网站上有一个错误，示例中的小错误。|1714451|while+($process1->isRunning()+&&+$process2->isRunning())+{
++++sleep(1);
}
should+of+course+be:
while+($process1->isRunning()+%7C%7C+$process2->isRunning())+{
++++sleep(1);
}|code-block|syntax|javascript|1714452|entityMap|0|LINK|mutability|MUTABLE|url|http://www.php.net/manual/de/ref.sem.php|1|http://zendframework.com/manual/1.9/en/zendx.console.process.unix.overview.html^0|7|C|1X|14|0|0|41|8|7W|27|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|F|3|G|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]]]

<code>pcntl_fork()</code> is what you are searching for, but its process forking not threading.
so you will have the problem of data exchange. to solve them you can use phps semaphore functions ( <a href="http://www.php.net/manual/de/ref.sem.php" rel="nofollow noreferrer">http://www.php.net/manual/de/ref.sem.php</a> ) message queues may be a bit easier for the beginning than shared memory segments.

Anyways, a strategy i am using in a web framework that i am developing which loads resource intensive blocks of a web page (probably with external requests) parallel:
i am doing a job queue to know what data i am waiting for and then i fork off the jobs for every process. once done they store their data in the apc cache under a unique key the parent process can access. once every data is there it continues.
i am using simple <code>usleep()</code> to wait because inter process communication is not possible in apache (children will loose the connection to their parents and become zombies...).
so this brings me to the last thing:
its important to self kill every child! 
there are as well classes that fork processes but keep data, i didn't examine them but zend framework has one, and they usually do slow but reliably code.
you can find it here:
<a href="http://zendframework.com/manual/1.9/en/zendx.console.process.unix.overview.html" rel="nofollow noreferrer">http://zendframework.com/manual/1.9/en/zendx.console.process.unix.overview.html</a>
i think they use shm segments!
well last but not least there is an error on this zend website, minor mistake in the example.

<pre><code>while ($process1-&gt;isRunning() &amp;&amp; $process2-&gt;isRunning()) {
 sleep(1);
}
should of course be:
while ($process1-&gt;isRunning() || $process2-&gt;isRunning()) {
 sleep(1);
}
</code></pre>

blocks|key|1714541|text|我有一个PHP线程类，已经在生产环境中完美运行了两年多。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1714542|编辑:它现在是一个作曲库，也是我的MVC框架Hazaar+MVC的一部分。|1714543|请参阅：https://git.hazaarlabs.com/hazaar/hazaar-thread|offset|length|1714544|entityMap|0|LINK|mutability|MUTABLE|url|https://git.hazaarlabs.com/hazaar/hazaar-thread^0|0|0|4|1B|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

I have a PHP threading class that's been running flawlessly in a production environment for over two years now.

EDIT: This is now available as a composer library and as part of my MVC framework, Hazaar MVC.

See: <a href="https://git.hazaarlabs.com/hazaar/hazaar-thread" rel="nofollow">https://git.hazaarlabs.com/hazaar/hazaar-thread</a>

blocks|key|1499551|text|我知道这是一个老生常谈的问题，但你可以看看http://phpthreadlib.sourceforge.net/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1499552|双向通信，支持Win32，不需要扩展。|1499553|entityMap|0|LINK|mutability|MUTABLE|url|http://phpthreadlib.sourceforge.net/^0|L|10|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]]]]

I know this is a way old question, but you could look at <a href="http://phpthreadlib.sourceforge.net/" rel="nofollow">http://phpthreadlib.sourceforge.net/</a>

Bi-directional communication, support for Win32, and no extensions required.

blocks|key|1499598|text|有一个基于PThreads的线程扩展正在活跃开发中，它在https://github.com/krakjoe/pthreads上看起来非常有前途|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1499599|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/krakjoe/pthreads^0|S|Z|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]]]]

There is a Threading extension being activley developed based on PThreads that looks very promising at <a href="https://github.com/krakjoe/pthreads" rel="noreferrer">https://github.com/krakjoe/pthreads</a>

blocks|key|1714782|text|这只是一个更新，似乎PHP的家伙们正在努力支持线程，它现在可以使用了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1714783|这是它的链接：http://php.net/manual/en/book.pthreads.php|offset|length|1714784|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/book.pthreads.php^0|0|7|16|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Just an update, its seem that PHP guys are working on supporting thread and its available now.

Here is the link to it:
<a href="http://php.net/manual/en/book.pthreads.php" rel="noreferrer">http://php.net/manual/en/book.pthreads.php</a>

blocks|key|1499762|text|你听说过技术部门的appserver吗？|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1499763|它是用php编写的，作为一个应用服务器为高流量的php应用程序管理多线程。仍处于测试阶段，但仍处于提示阶段。|1499764|entityMap^0|9|9|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

Ever heard about <code>appserver</code> from techdivision?

It is written in php and works as a appserver managing multithreads for high traffic php applications. Is still in beta but very promesing.

I found this <a href="http://pecl.php.net/package/threads" rel="noreferrer">PECL package called threads</a>, but there is not a release yet. And nothing is coming up on the PHP website.

问PHP有线程功能吗？
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