1，安装xampp（with php7.0）
下载地址： https://www.apachefriends.org/download.html
2，安装phalcon3.0
cd ~/
git clone --depth= git://github.com/phalcon/cphalcon.git
cd cphalcon/build
sudo ./install
3, 修改/Applications/XAMPP/etc/php.ini
；phalcon
extension＝/Users/MyUserName/cphalcon/build/php7/64bits/modules/phalcon.so
参考： https://developerjack.com/blog/2015/12/11/Installing-PHP7-with-homebrew/
https://phalconphp.com/en/download