How to clear session when logging out with php

This article mainly explains "php how to clear session when logging out", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to clear session when logging out with php"!

1. Clear the session value.

2. Determine whether the client's cookie file exists, and if so, set it to expire.

3. Clear the sesion file of the server.

Example

Public function logout () {$_ SESSION = array (); / / clear session value. If (isset ($_ Cookie [session _ name ()]) {/ / determines whether the client's cookie file exists, and sets it to expire if it exists. Setcookie (session_name (),', time ()-1);} session_destroy (); / / clear the server's sesion file}

When logging out, if the session or cookie is not cleaned clean, it will often cause all kinds of fantasy problems. Especially if your session is stored in a database driver on the server. Use the above code to clean it up thoroughly.

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