俺不想当伸手党,但是实在找不到啊
vagrant@homestead:~$ php -v
PHP 7.1.3-3+deb.sury.org~xenial+1 (cli) (built: Mar 25 2017 14:00:03) ( NTS ) Copyright (c) 1997-2017 The PHP Group
vagrant@homestead:/etc/php$ ls
5.5 5.6 7.0 7.1
想切到 5.6 去