一：加密协议选择
二：常用url传递函数介绍
urlencode 和 rawurlencode 区别是： urlencode把空格变为+号，而rawurlencode编码为20%；
base64_encodeThis encoding is designed to make binary data survive transport through transport layers that are not 8-bit clean, such as mail bodies.
fluentd，
原文：http://www.cnblogs.com/Alight/p/5064236.html