Passing SESSION in URL with PHP & Android

we are passing the session id in the URL from android to PHP (Web-service).Php web-service will get the session id & create a session with that ID.

Here we have 2 scenario,

1. Dedicated Server
2. Shared Server

Dedicated Server : In dedicated server, session is created successfully with same id & session variables are accessible.(there is no loss)

Shared Server: In shared server, session is created but with different Id & session variables are lost.

do i need to configure anything with my shared hosting PHP settings?

Both Server : PHP Version 5.3.21

Source: http://stackoverflow.com/questions/17877152/passing-session-in-url-with-php-android

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