问题
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/.
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].
Solutions I have tried:
- 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
Any suggestions? Thanks a lot!
回答1:
All you need to install from your terminal in Debian is:
sudo apt-get install php-xml
Or, if you're using PHP 7:
sudo apt-get install php7.0-xml
来源：https://stackoverflow.com/questions/45593729/symfony-3-composer-ext-dom-and-ext-xml-missing