PHP 警告：模块“mcrypt”已加载
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PHP warning : Module 'mcrypt' already loaded
提问by Zied R.
When I run a command with PHP, it shows me an error. E.g when I run php -vto see my PHP-version it shows me an error then the informations about PHP:
当我用 PHP 运行命令时，它显示一个错误。例如，当我运行php -v查看我的 PHP 版本时，它显示一个错误，然后显示有关 PHP 的信息：
Module 'mcrypt' already loaded in Unknown on line 0
模块“mcrypt”已在第 0 行的 Unknown 中加载
zied@ubuntu:~$ php -v
PHP Warning: Module 'mcrypt' already loaded in Unknown on line 0
PHP 5.4.25-1+sury.org~quantal+2 (cli) (built: Feb 12 2014 11:11:30)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2014 Zend Technologies
回答by Martin Tournoij
Your php.inicontains two or more of these lines:
您的php.ini包含以下两行或更多行：
extension=mcrypt.so
Remove all except one.
除一个之外的所有删除。
php.iniusually lives in /etc/php.inior /etc/php5/php.ini. Sometimes additional .ini files are included, you can see all of them with:
php.ini通常住在/etc/php.ini或/etc/php5/php.ini。有时包含额外的 .ini 文件，您可以通过以下方式查看所有文件：
$ php -i | grep .ini$
Loaded Configuration File => /usr/local/etc/php.ini
Additional .ini files parsed => /usr/local/etc/php/extensions.ini
user_ini.filename => .user.ini => .user.ini
回答by drookie
Sometimes this happens with php-fpm, and the funny thing is, console phpdoesn't complans about this using the same set of .ini-files in the same time, proving that mcryptin fact isn't referenced twice.
有时会发生这种情况php-fpm，有趣的是，控制台php不会同时使用相同的 .ini 文件集来解决这个问题，这证明mcrypt实际上没有被引用两次。
As it turns out, php-fpmhas a default set of modules built-in that it's trying to load, at least on Linux (since that isn't reproducible on FreeBSD). mcryptis in this list, so when a user has an additional .ini-file in it's /etc/php.ddirectory, mcryptseems to be loaded twice.
事实证明，它php-fpm有一组默认的内置模块，它试图加载，至少在 Linux 上是这样（因为在 FreeBSD 上无法重现）。mcrypt在这个列表中，所以当用户在它的/etc/php.d目录中有一个额外的 .ini 文件时，mcrypt似乎被加载了两次。
A harsh workaround for this is to add the -nswitch to the php-fpm on the start, copy pnp.inito a php-fpm.ini, include all of your modules into the resulting php-fpm.iniexcept mcryptand add an additional switch pointing at the correct ini-file, so the whole addition looks like: -n -c /etc/php-fpm.ini.
一个苛刻的解决方法是在开始时将-n开关添加到 php-fpm，复制pnp.ini到 a php-fpm.ini，将所有模块包含到结果中，php-fpm.ini除了 mcrypt并添加一个指向正确 ini 文件的附加开关，因此整个添加看起来像：-n -c /etc/php-fpm.ini。
This way running php-fpmwon't complain.
这样跑步php-fpm就不会抱怨了。
I'm writing this here, because this is most referenced post in search engines about mcryptissue. I realize the source question was about console php.
我在这里写这个，因为这是搜索引擎中关于mcrypt问题的最常引用的帖子。我意识到源问题是关于控制台 php。
Update:I was using this workaround, but it is nasty. Some time ago I have figured out exactly why did this happen. I'll spend some more words to describe this, but this can be boring, since this will describe a certain type of failure. So, in my case this issue was caused by the fact, that I was using a custom php build, made by myself, and occasionally I've added the mcryptto the list of builtin staticmodules. And thenI added it again as a built module, so it was loaded twice. This happens with a custom build when mcryptis referenced in the list of modules for the configure script, and isn't listed as shared(this part of the spec can be easily found, since %configure \is mentioned only once in the spec). In my case the solution was to remove the mcryptentirely from the configure part, and add it to the build-cgiand build-ztsclistages. One could ask " What about the fpm stage ?"- and it's a good question, but, it turns out, fpmsapi itself is built with a minimum of modules and uses generic sharedones.
更新：我正在使用此解决方法，但它很糟糕。前段时间我已经弄清楚为什么会发生这种情况。我会多花一些词来描述这个，但这可能很无聊，因为这将描述某种类型的失败。因此，在我的情况下，这个问题是由以下事实引起的，即我使用的是自己制作的自定义 php 版本，并且偶尔我将mcrypt添加到内置静态模块列表中。而随后我又增加一条，作为一个内置模块，因此它被加载两次。当在配置脚本的模块列表中引用mcrypt并且未列为共享时，自定义构建会发生这种情况（规范的这一部分很容易找到，因为%configure \在规范中只提到一次）。在我的情况下，解决方案是从配置部分完全删除mcrypt，并将其添加到build-cgi和build-ztscli阶段。有人可能会问“fpm 阶段呢？” - 这是一个很好的问题，但事实证明，fpmsapi 本身是用最少的模块构建的，并使用通用的共享模块。
回答by W.M.
I had the same issue and it was due to building PHP from source with ./configure --with-mcryptoption. It seems that if PHP is built with the --with-mcryptflag, then there is no need to specify extension=mcrypt.soin php.ini. Doing so causes the warning mentioned above.
我遇到了同样的问题，这是由于使用./configure --with-mcrypt选项从源代码构建 PHP 。好像PHP是用--with-mcryptflag构建的，那么就不用extension=mcrypt.so在php.ini. 这样做会导致上述警告。
