session_id
session_id
Get and/or set the current session id
**session_id** $id
is used to get or set the session id for
the current session.
session_id
The constant can also be used to
retrieve the current name and session id as a string suitable for
adding to URLs. See also .
SIDSession
handling
id
If is specified and not null, it will replace the current
session id. needs to be called before
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 !
id``session_id``session_start``[a-zA-Z0-9,-]
Opmerking: > When using session cookies, specifying an for will always send a new cookie when is called, regardless if the current session id is identical to the one being set.
id``session_id``session_start
returns the session id for the current
session or the empty string () if there is no current
session (no current session id exists).
On failure, false is returned.
session_id``""
session_regenerate_id``session_start``session_set_save_handlersession.save_handler