How to upgrade and install PHP 7 on ubuntu?

PHP 7, which was released on December 3, 2015, promises substantial speed improvements over previous versions of the language, along with new features like scalar type hinting.There have been a whole host of improvements made to PHP but we won’t delve too deep into changes. This is how to update to the latest release for those of you running a Ubuntu Linux system.



1. We need to do is add the ppa to our system, update the software sources and install our new version of PHP. 


sudo add-apt-repository ppa:ondrej/php
sudo apt-get update


sudo apt-get install php7.0-cli php7.0-common libapache2-mod-php7.0 php7.0 php7.0-mysql php7.0-fpm

Other packages which might be useful include:

sudo apt-get install php-mcrypt php7.0-soap php7.0-mbstring php7.0-intl php7.0-xml php7.0-curl php7.0-gd

Now you can check the php version using.


php -v

Result will like this.


PHP 7.0.9-1+deb.sury.org~xenial+1 (cli) ( NTS )
Copyright (c) 1997-2016 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies
    with Zend OPcache v7.0.9-1+deb.sury.org~xenial+1, Copyright (c) 1999-2016, by Zend Technologies
    with Xdebug v2.4.0, Copyright (c) 2002-2016, by Derick Rethans

2. Upgrading PHP-FPM with Nginx:

Install the PHP-FPM package.


sudo apt-get install php7.0-fpm

You'll be prompted to continue. Press Enter to complete the installation.

3. Install the mysql be sure for the PHP mysql bindings.


sudo apt-get install php7.0-mysql

Note: If you have made substantial modifications to any configuration files in /etc/php5/, those files are still in place, and can be referenced. Configuration files for PHP 7.0 now live in /etc/php/7.0.

4. Open the default configuration of nginx.


sudo nano /etc/nginx/sites-enabled/default

In the file fastcgi_pass unix:/var/run/php5-fpm.sock; changes to unix:/var/run/php/php7.0-fpm.sock


server {
    listen 80 default_server;
    listen [::]:80 default_server ipv6only=on;

    root /var/www/html;
    index index.php index.html index.htm;

    server_name server_domain_name_or_IP;

    location / {
        try_files $uri $uri/ =404;
    }

    error_page 404 /404.html;
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }

    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

Save and exit the file and restart the nginx server.


sudo service nginx restart

Now check the your document root /usr/share/nginx/html or /var/www/html it may change according to your server configuration.


sudo nano /var/www/html/info.php


<?php
phpinfo();
?>

5. Now see the action on browser.
http://server_domain_name_or_IP/info.php

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