sudo -i
https://github.com/swoole/swoole-src/releases/
wget https://github.com/swoole/swoole-src/archive/v4.0.1.tar.gz
tar -xvf v4.0.1.tar.gz
cd swoole-src-4.0.1
phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make
make test
make install
加入 `extension = swoole.so`
service php72-fpm restart
php -m | grep swoole
php --ri swoole