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session_id

session_id

(PHP 4, PHP 5, PHP 7)

session_id — Get and/or set the current session id

Description

string session_id ([ string $id ] )

session_id() is used to get or set the session id for the current session.

The constant SID can also be used to retrieve the current name and session id as a string suitable for adding to URLs. See also Session handling.