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首先，我参考 How to Install PHP 7.0 / 7.1 using HomeBrew on Mac Big Sur 用 exolnet/homebrew-deprecated 这个源装置失败了
/bin/sh ./config.sub -apple-darwin20.2.0 failed多方查找如果，最初应用 shivammathur/php 装置胜利了
装置 php7.1
$brew tap shivammathur/php
$brew search php
==> Formulae
brew-php-switcher ✔ php@7.2 phpmd shivammathur/php/php shivammathur/php/php@7.2
php php@7.3 phpmyadmin shivammathur/php/php@5.6 shivammathur/php/php@7.3
php-code-sniffer php@7.4 ✔ phpstan shivammathur/php/php@7.0 shivammathur/php/php@7.4 ✔
php-cs-fixer phplint phpunit shivammathur/php/php@7.1 shivammathur/php/php@8.1
==> Casks
eclipse-php netbeans-php phpstorm
$brew install php@7.1切换版本
装置 brew-php-swither 切换工具
$brew install brew-php-switcher
==> Downloading https://github.com/philcook/brew-php-switcher/archive/v2.2.tar.g
==> Downloading from https://codeload.github.com/philcook/brew-php-switcher/tar.
#=#=-# #
==> Installing brew-php-switcher
???? /usr/local/Cellar/brew-php-switcher/2.2: 6 files, 11.0KB, built in 4 seconds
$brew install php@7.1
brew 切换 php 版本
$brew-php-switcher 7.1
Switching to php@7.1
Switching your shell
Unlinking /opt/homebrew/Cellar/php@7.1/7.1.33... 0 symlinks removed
Unlinking /opt/homebrew/Cellar/php@7.4/7.4.14_1... 25 symlinks removed
Linking /opt/homebrew/Cellar/php@7.1/7.1.33... 25 symlinks created
If you need to have this software first in your PATH instead consider running:
echo 'export PATH="/opt/homebrew/opt/php@7.1/bin:$PATH"' >> ~/.zshrc
echo 'export PATH="/opt/homebrew/opt/php@7.1/sbin:$PATH"' >> ~/.zshrc
You will need sudo power from now on
Switching your apache conf
Restarting apache
All done!环境变量
$echo 'export PATH="/opt/homebrew/opt/php@7.1/bin:$PATH"' >> ~/.zshrc
$echo 'export PATH="/opt/homebrew/opt/php@7.1/sbin:$PATH"' >> ~/.zshrc
$source .zshrc
$php -v
PHP 7.1.33 (cli) (built: Dec 25 2020 07:27:59) (NTS)
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
with Zend OPcache v7.1.33, Copyright (c) 1999-2018, by Zend Technologies装置 mongodb 扩大
$sudo pecl install mongodb
………………
Build process completed successfully
Installing '/opt/homebrew/Cellar/php@7.1/7.1.33/pecl/20160303/mongodb.so'
install ok: channel://pecl.php.net/mongodb-1.9.0
Extension mongodb enabled in php.ini
$php -i | grep mongo
mongodb
正文完
