使用 Laravel Homestead 环境

$ vagrant init laravel/homestead
$ vagrant up
$ vagrant ssh
Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-81-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

3 packages can be updated.
0 updates are security updates.


vagrant@homestead:~$ 

Ubuntu 16.04 升级 PHP 版本至 7.1

$ sudo add-apt-repository ppa:ondrej/php
$ sudo apt-get update
$ sudo apt-get upgrade php
$ php -v
Cannot load Xdebug - it was already loaded
PHP 7.1.8-2+ubuntu16.04.1+deb.sury.org+4 (cli) (built: Aug  4 2017 13:04:12) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies
    with Zend OPcache v7.1.8-2+ubuntu16.04.1+deb.sury.org+4, Copyright (c) 1999-2017, by Zend Technologies
    with Xdebug v2.5.5, Copyright (c) 2002-2017, by Derick Rethans