安装环境
操作系统：macos
安装swoole之前，先确保php版本大于等于7.0
☁ ~ php -v
PHP 7.0.29 (cli) (built: Apr 12 2018 03:15:13) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with Zend OPcache v7.0.29, Copyright (c) 1999-2017, by Zend Technologies
使用pecl安装swoole扩展
pecl install swoole
安装时，如果选择了redis, 系统需要安装redis及hiredis
验证swoole
☁ ~ php -m | grep swoole
swoole
也可通过phpinfo查看swoole
phpinfo查看swoole
