Logout button php

Question

I have this code and need the code to add a logout button  can anyone write out the code for a log out button that will log out the user  I read something about destroy session but do not know how to write the code out  thank you    lt  php     include  connection php         start of checking if user is logged in code     if   valid credentials        header  Location  login php        exit             SESSION  user      username     if   isset   SESSION  user           header  Location  login php        exit            end of logged in code and starting a session   query    SELECT   FROM people    result   mysql query  query   While  person   mysql fetch array  result         echo   lt h3 gt      person  Name       lt  h3 gt        echo   lt p gt      person  Description       lt  p gt        echo   lt a href   modify php id      person  ID        gt Modify User lt  a gt        echo   lt span gt   lt  span gt        echo   lt a href   delete php id      person  ID        gt Delete User lt  a gt        gt   lt h1 gt Create a User lt  h1 gt   lt form action  create php  method  post  gt      Name lt input type   text  name  inputName  value      gt  lt br   gt      Description lt input type   text  name  inputDesc  value      gt       lt br   gt       lt input type  submit  name  submit    gt   lt  form gt

User · Answer

When you want to destroy a session completely, you need to do more then just

session_destroy();

First, you should unset any session variables. Then you should destroy the session followed by closing the write of the session. This can be done by the following:

<?php
session_start();
unset($_SESSION);
session_destroy();
session_write_close();
header('Location: /');
die;
?>

The reason you want have a separate script for a logout is so that you do not accidently execute it on the page. So make a link to your logout script, then the header will redirect to the root of your site.

Edit:

You need to remove the () from your exit code near the top of your script. it should just be

exit;

User · Answer

Instead of a button  put a link and navigate it to another page   lt a href  logout php  gt Logout lt  a gt    Then in logout php page  use  session start    session destroy    header  Location  login php    exit

[php] Logout button php

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