http://pecl.php.net/package/swoole
wget http://pecl.php.net/get/swoole-4.0.1.tgz
tar zxvf swoole-4.0.1.tgz
cd swoole-4.0.1
/www/wdlinux/apache_php/bin/phpize
./configure --with-php-config=/www/wdlinux/apache_php-7.1.2/bin/php-config
make && make install
Installing shared extensions: /www/wdlinux/apache_php-7.1.2/lib/php/extensions/no-debug-non-zts-20160303/
Installing header files: /www/wdlinux/apache_php-7.1.2/include/php/
vim /www/wdlinux/apache_php-7.1.2/etc/php.ini
service httpd restart
