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PHP Manual :: session_regenerate_id



session_name || session_register_shutdown || Session Functions || PHP Manual

(PHP 4 >= 4.3.2, PHP 5, PHP 7)

session_regenerate_id Update the current session id with a newly generated one

Description

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.

Return Values

Returns TRUE on success or FALSE on failure.

Changelog

Version Description
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

Example #1 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



session_name || session_register_shutdown || Session Functions || PHP Manual
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