I installed php7/apache2.4/mysql5.6 via this script, but it turns out that the extensions xsl and intl are missing (need them to run Magento2).
I'm using Ubuntu 14.04.
If it is for dev purposes only, the easiest way would be use a PPA like ppa:ondrej/php-7.0 and then apt-get install php7.0-intl and apt-get install php7.0-xsl. PPAs should NEVER be used in production.
You can run sudo apt-get install php7.0-intl to get it installed.
You dont need PPA adding on 16.10 .
1st you need to add ppa repository to server
this can be done by :
sudo add-apt-repository ppa:ondrej/php
when PPA repo installed, update the local package cache by :
sudo apt-get update
after this you need to run following command to install intl & xsl extensions
sudo apt-get install php7.0-intl
sudo apt-get install php7.0-xsl
check the php extensions by :
php -m
if the extension does load on browser , than you need to check your php.ini for apache2
that can be found by calling <?php phpinfo();?> in info.php file
来源：https://stackoverflow.com/questions/34294852/how-to-install-enable-intl-and-xsl-extensions-after-installing-php-7