升级mac版本的php

1、查看php版本： php －v
5.5.29
2、使用homebrew安装php7
brew update #更新源
brew search php #查找源中的php，发现有php7.1版本，安装最新的php7.1
brew install php72
3、install 成功后根据提示修改相应的文档

<FilesMatch .php$>
    SetHandler application/x-httpd-php
</FilesMatch>

Finally, check DirectoryIndex includes index.php
    DirectoryIndex index.php index.html

The php.ini and php-fpm.ini file can be found in:
    /usr/local/etc/php/7.2/

To have launchd start php now and restart at login:
brew services start php
Or, if you don't want/need a background service you can just run:
php-fpm
==> Summary
🍺  /usr/local/Cellar/php/7.2.3_2: 515 files, 84.6MB
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3.1 sudo －i ＃ root权限
3.2 vim /etc/apache2/httpd.conf ＃ 添加下面代码
/usr/local/opt/php/lib/httpd/modules/libphp7.so
<FilesMatch .php$>
    SetHandler application/x-httpd-php
</FilesMatch>
3.3 apachectl restart  //重启apache

4、查看版本
php －v
7.2.3_2