How to destroy a session in php
(PHP 4, PHP 5, PHP 7, PHP 8) Show session_destroy — Destroys all data registered to a session Descriptionsession_destroy(): bool 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. To use the session variables again, session_start() has to be called.
In order to kill the session altogether, 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. When session.use_strict_mode is enabled. You do not have to remove obsolete session ID cookie because session module will not accept session ID cookie when there is no data associated to the session ID and set new session ID cookie. Enabling session.use_strict_mode is recommended for all sites. Warning Immediate session deletion may cause unwanted results. When there is concurrent requests, other connections may see sudden session data loss. e.g. Requests from JavaScript and/or requests from URL links. Although current session module does not accept empty session ID cookie, but immediate session deletion may result in empty session ID cookie due to client(browser) side race condition. This will result that the client creates many session ID needlessly. To avoid these, you must set deletion time-stamp to $_SESSION and reject access while later. Or make sure your application does not have concurrent requests. This applies to session_regenerate_id() also. ParametersThis function has no parameters. Return Values Returns ExamplesExample #1 Destroying a session with $_SESSION
See Also
Praveen V ¶ 10 years ago
Jack Luo ¶ 8 years ago
JBH ¶ 5 years ago
greald at gmail dot com ¶ 1 year ago
How do you delete a session?You can use the following procedure in Chrome:. Hit F12 or open the contextual menu (right click), then "Inspect element". Go to the Application tab.. On the right sidebar menu, go to Application > Clear storage.. Uncheck everything but Local and session storage.. Scroll to the very down and click Clear site data.. What is $_ session in PHP?PHP $_SESSION is an associative array that contains all session variables. It is used to set and get session variable values.
Which of the following is used to destroy the session?Queries related to “Which of the following is used to destroy the session?” session_destroy() erases all session variable.
What does session_start () do in PHP?session_start() creates a session or resumes the current one based on a session identifier passed via a GET or POST request, or passed via a cookie. When session_start() is called or when a session auto starts, PHP will call the open and read session save handlers.
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