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] )
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. Defaults to
FALSE.
返回值
如果成功则返回 TRUE，失败则返回 FALSE。
范例
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);
?>
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