Para instalar o php7 no Ubuntu 15.10 com Nginx:
sudo service nginx stop
sudo apt-get purge php5-*
sudo apt-get install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php7.0 \
php7.0-common \
php7.0-cgi \
php7.0-json \
php7.0-redis \
php7.0-imagick \
php7.0-apcu \
php7.0-fpm \
php7.0-curl \
php7.0-mysql \
php7.0-gd \
php7.0-mcrypt \
php7.0-pgsql \
php7.0-sqlite3 \
php7.0-mbstring \
php7.0-dom \
php7.0-zip \
php7.0-intl \
php-memcached \
php7.0-dev
Edite as configurações do Nginx:
sudo nano /etc/nginx/sites-available/thedomainnamegoeshere.com
location ~ .php$ {
include fastcgi_params;
fastcgi_keep_conn on;
fastcgi_index index.php;
fastcgi_split_path_info ^(.+.php)(/.+)$;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_intercept_errors on;
fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
}
Reinicie o Nginx:
sudo service nginx start