Symfony 3作曲家，缺少ext-dom和ext-xml [英] Symfony 3 composer, ext-dom and ext-xml missing

问题描述

我正在运行Linux Mint 18.1.我的IDE是PhpStorm，我正在尝试通过作曲家安装PHPUnit.我在 https://getcomposer.org/download/中遵循了安装步骤.

I am running Linux Mint 18.1. My IDE is PhpStorm and I am trying to install PHPUnit trough the composer. I followed the installation steps at https://getcomposer.org/download/.

问题1 -phpunit/phpunit 6.4.x-dev的安装请求-> phpunit/phpunit [6.4.x-dev]可满足. -phpunit/phpunit 6.4.x-dev需要ext-dom *->系统中缺少所请求的PHP扩展dom.
问题2 -symfony/symfony v3.3.6需要ext-xml *->您的系统中缺少所请求的PHP扩展xml. -symfony/symfony v3.3.6需要ext-xml *->您的系统中缺少所请求的PHP扩展xml. -symfony/symfony v3.3.6需要ext-xml *->您的系统中缺少所请求的PHP扩展xml. -symfony/symfony的安装请求(锁定在v3.3.6，要求为3.3.*)-> symfony/symfony [v3.3.6]可以满足.

Problem 1 - Installation request for phpunit/phpunit 6.4.x-dev -> satisfiable by phpunit/phpunit[6.4.x-dev]. - phpunit/phpunit 6.4.x-dev requires ext-dom * -> the requested PHP extension dom is missing from your system.
Problem 2 - symfony/symfony v3.3.6 requires ext-xml * -> the requested PHP extension xml is missing from your system. - symfony/symfony v3.3.6 requires ext-xml * -> the requested PHP extension xml is missing from your system. - symfony/symfony v3.3.6 requires ext-xml * -> the requested PHP extension xml is missing from your system. - Installation request for symfony/symfony (locked at v3.3.6, required as 3.3.*) -> satisfiable by symfony/symfony[v3.3.6].

我尝试过的解决方案:

• 安装php-xml
• 安装php7.0-xml
• 此答案表示要检查是否在您的任何php.ini文件中启用了"extension = dom.so".它甚至不在我的文件中

• Install php-xml
• Install php7.0-xml
• This answer says to check if "extension=dom.so" is enabled in any of your php.ini files. It is not even present in my files

有什么建议吗?非常感谢！

Any suggestions? Thanks a lot!

推荐答案

您需要在Debian中从终端安装的所有内容是:

All you need to install from your terminal in Debian is:

sudo apt-get install php-xml

或者，如果您使用的是PHP 7:

Or, if you're using PHP 7:

 sudo apt-get install php7.0-xml

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