Syntax

string session_id ([ string $id ] )

Popis

Príkaz jazyka PHP
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.

Parametre

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 0-9 , (comma) and - (minus)!

Návratové hodnoty

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).

Pozri aj

session_regenerate_id, session_start, session_set_save_handler,

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