session_destroy

(PHP 4, PHP 5)

session_destroy — Destroys all data registered to a session

说明

bool session_destroy ( void )

session_destroy() destroys all of the data associated with the current session. It does not unset any of the global variables associated with the session, or unset the session cookie.

In order to kill the session altogether, like to log the user out, the session id must also be unset. If a cookie is used to propagate the session id (default behavior), then the session cookie must be deleted. setcookie() may be used for that.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

范例

Example#1 Destroying a session with $_SESSION


<?php
// Initialize the session.
// If you are using session_name("something"), don't forget it now!
session_start();

// Unset all of the session variables.
$_SESSION = array();

// If it's desired to kill the session, also delete the session cookie.
// Note: This will destroy the session, and not just the session data!
if (isset($_COOKIE[session_name()])) {
    setcookie(session_name(), '', time()-42000, '/');
}

// Finally, destroy the session.
session_destroy();
?>

注释

Note: Only use session_unset() for older deprecated code that does not use $_SESSION.


	PHP5中文手册 session_decode session_encode Sessions PHP Manual session_destroy (PHP 4, PHP 5) session_destroy — Destroys all data registered to a session 说明 bool session_destroy ( void ) session_destroy() destroys all of the data associated with the current session. It does not unset any of the global variables associated with the session, or unset the session cookie. In order to kill the session altogether, like to log the user out, the session id must also be unset. If a cookie is used to propagate the session id (default behavior), then the session cookie must be deleted. setcookie() may be used for that. 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。范例 Example#1 Destroying a session with `$_SESSION` <?php // Initialize the session. // If you are using session_name("something"), don't forget it now! session_start(); // Unset all of the session variables. $_SESSION = array(); // If it's desired to kill the session, also delete the session cookie. // Note: This will destroy the session, and not just the session data! if (isset($_COOKIE[session_name()])) { setcookie(session_name(), '', time()-42000, '/'); } // Finally, destroy the session. session_destroy(); ?> 注释 Note: Only use session_unset() for older deprecated code that does not use `$_SESSION`. 参见 unset() setcookie() session_decode session_encode Sessions PHP Manual

session_destroy

说明

返回值

范例

注释

参见