如何检查在Ubuntu Linux 12.04 LTS中启用/禁用了哪些PHP扩展? [英] How to check which PHP extensions have been enabled/disabled in Ubuntu Linux 12.04 LTS?
问题描述
我在本地计算机上使用Ubuntu Linux 12.04 LTS.我很早以前就在计算机上安装了LAMP.现在，我想启用以下PHP扩展:
I'm using Ubuntu Linux 12.04 LTS on my local machine. I've installed LAMP long ago on my machine. Now I want to enable following PHP extensions:
- php_zip
- php_xml
- php_gd2
首先，我要检查是否启用了这些PHP扩展.我搜索了很多有关如何检查已安装/启用的PHP扩展的信息，但是每次我找到如何在Ubuntu Linux上安装这些扩展的信息.所以有人可以让我知道如何在Ubuntu Linux 12.04 LTS中检查已启用/已禁用的PHP扩展吗?预先感谢.
For it first I want to check whether these PHP extensions are enabled or not. I searched a lot about how to check the installed/enabled PHP extensions but every time I found how to install these extensions on Ubuntu Linux. So can someone please let me know how should I check the enabled/disabled PHP extensions in Ubuntu Linux 12.04 LTS? Thanks in advance.
推荐答案
检查已安装的php模块和软件包
除了运行
php -m
获取已安装的php 模块的列表，您可能会发现获取Ubuntu中当前已安装的php 软件包的列表很有帮助:
to get the list of installed php modules, you will probably find it helpful to get the list of the currently installed php packages in Ubuntu:
sudo dpkg --get-selections | grep -v deinstall | grep php
这很有用，因为Ubuntu通过软件包使php 模块可用.
This is helpful since Ubuntu makes php modules available via packages.
然后您可以通过从可用的Ubuntu php 软件包中进行选择来安装所需的模块，您可以通过运行以下命令进行查看:
You can then install the needed modules by selecting from the available Ubuntu php packages, which you can view by running:
sudo apt-cache search php | grep "^php5-"
或者，对于Ubuntu 16.04及更高版本:
Or, for Ubuntu 16.04 and higher:
sudo apt-cache search php | grep "^php7"
正如您所提到的，在您可能需要的软件包的实际安装方面，有很多可用的信息，因此在这里我将不做详细介绍.
As you have mentioned, there is plenty of information available on the actual installation of the packages that you might require, so I won't go into detail about that here.
已安装的模块可能已被禁用.在这种情况下，它在运行php -m时不会显示，但会显示在已安装的Ubuntu软件包列表中.
It is possible that an installed module has been disabled. In that case, it won't show up when running php -m, but it will show up in the list of installed Ubuntu packages.
可以通过php-common软件包中的php5enmod工具(在以后的发行版中为phpenmod)启用/禁用模块.
Modules can be enabled/disabled via the php5enmod tool (phpenmod on later distros) which is part of the php-common package.
Ubuntu 12.04:
已启用的模块在/etc/php5/conf.d
Ubuntu 12.04 :(使用PHP 5.4 +)
要启用已安装的模块:
php5enmod <modulename>
要禁用已安装的模块:
php5dismod <modulename>
Ubuntu 16.04(php7)及更高版本:
要启用已安装的模块:
phpenmod <modulename>
要禁用已安装的模块:
phpdismod <modulename>
重新加载Apache
请记住在启用/禁用后重新加载Apache2:
Remember to reload Apache2 after enabling/disabling:
service apache2 reload
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