Mac installs php-redis extension for php7

Note: Operating system version 10.13.3, other versions of Mac systems should also work

1. Install first
   . Execute the following commands on the command line in order. If the current user authority is not enough, execute the command plus sudo

   cd /usr/local/Cellar    //我是安装到Cellar目录下了
   git clone https://github.com/phpredis/phpredis.git 
   cd phpredis 
   phpize //phpize是用来扩展php扩展模块的，通过phpize可以建立php的外挂模块 
   make //编译程序 
   make install

2. Configuration extension
   In the php configuration file (my computer's php.ini is under /usr/local/etc, this depends on the situation) plus

   extension=redis.so

3. Restart the server and use the php_info() function to check whether php supports the redis extension

Reference for this article: https://blog.csdn.net/qq_34908844/article/details/76945298
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