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PHP Functions
Function: session_id (PHP 4, PHP 5) session_id -- Get and/or set the current session idDescriptionstring session_id ( [string id] )session_id() returns the session id for the current session. If id is specified, it will replace the current session id. session_id() needs to be called before session_start() for that purpose. Depending on the session handler, not all characters are allowed within the session id. For example, the file session handler only allows characters in the range a-z, A-Z and 0-9 ! Note: When using session cookies, specifying an id for session_id() will always send a new cookie when session_start() is called, regardless if the current session id is identical to the one being set. The constant SID can also be used to retrieve the current name and session id as a string suitable for adding to URLs. Note that SID is only defined if Related Function(s) |