1.0 搜索版本

$ brew search php

brew-php-switcher  php  php-code-sniffer php-cs-fixer php@7.2  php@7.3  phplint  phpmd  phpmyadmin phpstan  phpunit

2.0 选择安装的版本

$ brew install php@7.2
#waiting...

3.0 安装路径

$ /usr/local/opt/php@7.2

cd /usr/local/opt/php@7.2/bin/
./php -v

PHP 7.2.26 (cli) (built: Dec 18 2019 15:28:58) ( NTS )

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies

 with Zend OPcache v7.2.26, Copyright (c) 1999-2018, by Zend Technologies

4.0 修改php默认环境变量

#先查看默认路径
which php
#新建base_profile
$ vim ~/.bash_profile

5.0 添加路径

export PATH="/usr/local/opt/php@7.2/bin:$PATH"
#保存

6.0 运行文件使配置生效

source ~/.bash_profile

php -v

PHP 7.2.26 (cli) (built: Dec 18 2019 15:28:58) ( NTS )

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies

 with Zend OPcache v7.2.26, Copyright (c) 1999-2018, by Zend Technologies

 #完成啦

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