聊聊brew link更换php版本失败问题

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问题描述：

我透過 brew 安裝三種PHP版本

PHP 5.6PHP 7.4PHP 8.0

$ PHP -v

PHP 8.0.3 (cli) (built: Mar  4 2021 20:45:17) ( NTS )copyright (c) The PHP GroupZend 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@7.4Unlinking /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 GroupZend Engine v4.0.3, copyright (c) Zend TechnologIEs    with Zend OPcache v8.0.3, copyright (c), by Zend TechnologIEs

中規中矩 *** 作了

這是哪裏有少設置了？

分析解决：

你可以尝试安装一个PHP选择器

brew updatebrew upgrade

参考文档

https://github.com/shivammathur/homebrew-PHP

安装指定PHP brew install shivammathur/PHP/PHP@7.3

链接PHP版本 brew link --overwrite --force PHP@7.3

如果出现报错

Warning: Already linked: <Cellar Path>To relink:  brew unlink <formula> && brew link <formula>

执行

brew unlink PHP@7.3brew link --overwrite --force PHP@7.3

重启服务

apache brew services restart httpdNginx brew services restart Nginx

安装结果

To enable PHP in Apache add the following to httpd.conf and restart Apache:    LoadModule PHP7_module /usr/local/opt/PHP@7.0/lib/httpd/modules/libPHP7.so    <filesMatch \.PHP$>        SetHandler application/x-httpd-PHP    </filesMatch>Finally, check DirectoryIndex includes index.PHP    DirectoryIndex index.PHP index.HTMLThe PHP.ini and PHP-fpm.ini file can be found in:    /usr/local/etc/PHP/7.0/PHP@7.0 is keg-only, which means it was not symlinked into /usr/local,because this is an alternate version of another formula.If you need to have PHP@7.0 first in your PATH run:  echo 'export PATH="/usr/local/opt/PHP@7.0/bin:$PATH"' >> ~/.zshrc  echo 'export PATH="/usr/local/opt/PHP@7.0/sbin:$PATH"' >> ~/.zshrcFor compilers to find PHP@7.0 you may need to set:  export LDFLAGS="-L/usr/local/opt/PHP@7.0/lib"  export CPPFLAGS="-I/usr/local/opt/PHP@7.0/include"To have launchd start shivammathur/PHP/PHP@7.0 Now and restart at login:  brew services start shivammathur/PHP/PHP@7.0Or, if you don't want/need a background service you can just run:  PHP-fpm

欢迎讨论！

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