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session_regenerate_id

(PHP 4 >= 4.3.2, PHP 5)

session_regenerate_id --  Update the current session id with a newly generated one

說明

bool session_regenerate_id ( [bool delete_old_session] )

session_regenerate_id() will replace the current session id with a new one, and keep the current session information.

參數

delete_old_session

Whether to delete the old associated session file or not. Defaults to FALSE.

返回值

若果成功則返回 TRUE，失敗則返回 FALSE。

更新日誌

版本說明
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.

範例

例子 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);
?>

參見

session_id()
session_start()
session_name()



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session_name上一級session_register