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Logout script with session management in php5

I failed to script a logout web page in php with session script doesn`t get any affect by logging out when the BACK button is pressed.can u help me

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  • fetusbata May 11, 2010

    hi, can you give me the code that you made?
    I'll suggest to use cookies because cookies are suited for logging out implementation. As what i have read, session is use for passing the data to another page.



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Just create a logout.php script with the following


header("Location: index.php");

Have your logout button/link/whatever just open that page which connects to the session with session_start. Session destroy does exactly what it sounds like... it unsets all session data and tells the server to end the session. The header request then just re-directs the user to whatever page you want after (just change out index.php)

Posted on Mar 17, 2009

  • djroot2 Mar 17, 2009

    I should have added the following between the session_start() and session_destroy() as session_destroy doesn't actually unset the variables and won't delete any cookies set.

    $_SESSION = array();

    if (isset($_COOKIE[session_name()])) {
    setcookie(session_name(), '', time()-42000, '/');


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If it doesnt take effect its probably not actualy exicuting your logout script right.

the main part would be that it does this... (eg. level session)

as soon as thats happend the session should be gone

oo and its worth double looking out for having ..
.. in there,
little line im always forgetting yet its so important

Posted on Feb 06, 2009


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My email ID is- I unable to logout from my email account. when i am clicking on sign out, its say wait and after some time- page cannot be displayed is reflecting.

Hay! Mona,
This is Neeraj Singh from Allahabad. I found your problem via

"My email ID is- I unable to logout from my email account. When I am clicking on sign out, it’s say wait and after some time- page cannot be displayed is reflecting. "

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Logout problem

what code are you using to destroy the session?

should look something like this
e.g. getting rid of email session

Jan 16, 2009 | The PHP Group PHP

1 Answer


are you saying you're switching from a session variable to a cookie?

delete the cookie altogether by setting the expiration to a time in the past (negative value). don't forget that you'll then have to reload a page in order to reread the cookie data.

so if you have a cookie with a logged_in value = true, and you set it to logged_in value = false, you're still logged_in = true, until you reload that page (or another page) and it rereads the cookie data and now determines that logged_in = false.

make sense? write the logged_in=false to the cookie, then force a url redirection to reload the page is my suggestion.

Jan 13, 2009 | The PHP Group PHP

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