session_id
(PHP 4, PHP 5) welcome to phpsu.com
session_id -- Get and/or set the current session idDescription
string session_id ( [string id] )session_id() is used to get or set the session id for the current session. phpsu is a phpschool
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.
welcome to phpsu.com
Parameters
- id
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!
welcome to phpsu.comNote: 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. phpsu.com
Return Values
session_id() returns the session id for the current session or the empty string ("") if there is no current session (no current session id exists).
See Also
http://www.phpsu.com
session_regenerate_id()session_start()session_set_save_handler() session.save_handler >
phpsu.com is a free phpscool
TITLE:PHP: session_id