查找已安装的 PHP 是线程安全的还是非线程安全的？

如何查明已安装的 PHP 版本是否是线程安全的？

请注意，我并没有询问线程安全/非线程安全安装之间的区别。我想知道当前安装了什么。

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Check if your install is Apache Module or CGI Binary. See Stack Overflow question What is thread safe or non-thread safe in PHP?.

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最佳答案

Open a phpinfo() and search for the line Thread safety. For a thread-safe build you should find enable.

As specified in the comments by Muhammad Gelbana you can also use:

  • On Windows : php -i|findstr "Thread"
  • On *nix: php -i|grep Thread
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Create a new PHP file and insert this code in it:

<?php
phpinfo(); ?>

Then run this page and you will find all of the PHP information. Search for the term that you want, and it will show you it's enabled.

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If you prefer to use the command line:

  • *nix:

    php -i | grep -i "Thread"

  • Windows:

    php -i | findstr -i "thread"

This should give you something like this:

Thread Safety => enabled

or

Thread Safety => disabled
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I just find it easier to look at the file named php[version].dll in the root folder of php. Its either php[version].dll or php[version]ts.dll (ts standing for Thread Safe). So, if you have php7.0.10 installed, go to the directory that has this name and you'll find a file named php7ts.dll. This is a very sad way of finding out, but it works!

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Then there's the undocumented ZEND_THREAD_SAFE constant, which seems to exist since PHP 4.3.

<?php


if (ZEND_THREAD_SAFE) {
echo 'Thread safe';
} else {
echo 'Not thread safe';
}

https://3v4l.org/tALKX

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Another way to check it is using php -v or php --version. Example bellow from mine (NTS):

    $ php --version
    

PHP 7.3.25-1+ubuntu20.04.1+deb.sury.org+1 (cli) (built: Dec 26 2020 10:32:51) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.25, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.3.25-1+ubuntu20.04.1+deb.sury.org+1, Copyright (c) 1999-2018, by Zend Technologies

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