网站在线客服，或称做网上前台，是一种以网站为媒介，向互联网访客与网站内部员工提供即时沟通的页面通信技术。本专题汇集了基于PHP的在线聊天系统源码，希望对大家有用。(Website online customer service, or online front office, is a page communication technology that provides instant communication between Internet visitors and internal s