brew link 換 php 版本失敗？

homebrew brew php

火爆浪子 2021-04-13 14:37:10 ‧ 621 瀏覽

我透過 brew 安裝三種php版本
php 5.6
php 7.4
php 8.0

$ php -v

PHP 8.0.3 (cli) (built: Mar  4 2021 20:45:17) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.3, Copyright (c) Zend Technologies
    with Zend OPcache v8.0.3, Copyright (c), by Zend Technologies

停用8.0使用7.4

$ brew unlink php@8.0 && brew link php@7.4
Unlinking /usr/local/Cellar/php/8.0.3... 0 symlinks removed.
Linking /usr/local/Cellar/php@7.4/7.4.16... 264 symlinks created.

$ php -v
還是一樣版本
我開新的終端機也是一樣8.0.3

PHP 8.0.3 (cli) (built: Mar  4 2021 20:45:17) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.3, Copyright (c) Zend Technologies
    with Zend OPcache v8.0.3, Copyright (c), by Zend Technologies

中規中矩操作了
這是哪裏有少設置了？