git clone git@github.com:swoole/swoole-src.git
phpize
./configure
make && make test
make install
修改 php.ini (/etc/php/7.2/cli/php.ini / ../fpm/php.ini)
extension=swoole.io
(ln -s /etc/php/7.2/mods-available/swoole.ini /etc/php/7.2/cli/conf.d/20-swoole.ini)//我自己做了软连接
service php7.2-fpm restart