The newly released PHP 7 has fascinated me for a while. However, a quick googling reveals only a few tutorials that show how the new PHP version is hooked up with Apache. Moreover, most of them require installing untrusted PPAs. That's something I'd avoid, so I took a different approach. This is how I got it going.
I'm using the freshly released Ubuntu 16.04 since php7 is included in Xenial's main repository. Because the PHP 7 Apache module doesn't yet seem to be available, I'm going to run PHP using its CGI SAPI instead.
First install Apache and PHP:
sudo apt-get install apache2 php7.0 php7.0-cgi
Enable actions and cgi modules in Apache:
sudo a2enmod actions sudo a2enmod cgi
Now, add the following lines in Apache config file (usually /etc/apache2/apache2.conf in Ubuntu):
ScriptAlias /local-bin /usr/bin
AddHandler application/x-httpd-php7 php
Action application/x-httpd-php7 /local-bin/php-cgi7.0
<Directory "/usr/bin">
Require all granted
AllowOverride All
</Directory>
ScriptAlias tells Apache that /usr/bin directory can be used to execute scripts. AddHandler maps files with a .php extension to a MIME type of application/x-httpd-php7. Action defines that when a file with this MIME type is encountered, it should pass it to /usr/bin/php-cgi7.0. Lastly, the directory block gives all requests the permission to access the /usr/bin/ folder.
Restart Apache with sudo service apache2 restart and your web server should be ready to process PHP!
