单文件 PHP AJAX 聊天室源码 单个文件 体积小巧 速度快-ajaxchatroom

用ajax和PHP实现的小型实时聊天室源代码| 用ajax和PHP实现的小型实时聊天室源代码-Implemented using ajax and PHP source code for a small real-time chat room | implemented with ajax and PHP source code for small real-time chat room