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name

A PHP Error was encountered

Severity: Notice

Message: Undefined index: userid

Filename: views/question.php

Line Number: 191

Backtrace:

File: /home/prodcxja/public_html/questions/application/views/question.php
Line: 191
Function: _error_handler

File: /home/prodcxja/public_html/questions/application/controllers/Questions.php
Line: 433
Function: view

File: /home/prodcxja/public_html/questions/index.php
Line: 315
Function: require_once

name Punditsdkoslkdosdkoskdo

Android Socket.io Background Service

I have a socket.io library. It's a websocket library on JavaScript. I want to keep alive 7/24 the service but the android OREO have background service limits. How can i solve it ? I want to check the client is alive or not. The whatsapp, facebook and skype how do that? I want to ping the every 3 seconds to my server. But i want to keep alive the sockets connections.