检测客户端
我服务端发送json 发给客户端 如果客户端有回应 就代表客户端没断线
这个逻辑什么写
PHP貌似没有类似$.post这种东西吧
回复讨论(解决方案)
服务端不能主动发送数据给客户端，所以你的问题无解
服务端不能主动发送数据给客户端，所以你的问题无解
。。。。。。。
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