:sig
String session_start(String session_name = "uce-session")

:params
session_name : optional name of the session cookie, defaults to "uce-session"
return value : the current session ID

:desc
Starts session or connects to existing session. This function sets a cookie with the name contained in 'session_name' if it does not exist and fills that cookie with a new unique session ID. It then loads the session data for that session ID. Afterwards, the following fields are populated in the 'context' variable:

context->session_id : the current session ID

context->session_name : the current session cookie name

context->session : the current session data. The session data is automatically saved after a request completes.

:see
>session