session_regenerate_id Update the current session id with a newly generated one


session_regenerate_id

(PHP 4 >= 4.3.2, PHP 5)

session_regenerate_id Update the current session id with a newly generated one

说明

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.

参数

delete_old_session

Whether to delete the old associated session file or not.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

更新日志

版本 说明
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.

范例

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);
?>

参见


«  session_name
» session_register
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