(PHP 4 >= 4.3.2, PHP 5, PHP 7)
Update the current session id with a newly generated one
bool session_regenerate_id ([ bool $delete_old_session = false ] )
session_regenerate_id() will replace the current session id with a new one, and keep the current session information.
When session.use_trans_sid is enabled, output must be started after session_regenerate_id() call. Otherwise, old session ID is used.
Parameters:
delete_old_session
Whether to delete the old associated session file or not.
Returns:
Returns TRUE
on success or FALSE
on failure.
Changelog:
4.3.3
Since then, if session cookies are enabled, use of session_regenerate_id() will also submit a new session cookie with the new session id.
5.1.0
Added the delete_old_session
parameter.
Examples:
A session_regenerate_id() example
<?php session_start(); $old_sessionid = session_id(); session_regenerate_id(); $new_sessionid = session_id(); echo "Old Session: $old_sessionid<br />"; echo "New Session: $new_sessionid<br />"; print_r($_SESSION); ?>
See also:
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