Facebook Php Logout

Eh?  Is there anything else you want to tell us?

I need a redirect to my logout.php after being log out on facebook.

There are two ways you can redirect the client browser.  One is with the header() function.  The other is to put a meta-refresh tag into the browser output stream.  The latter method is "deprecated" however I have never encountered a browser that did not obey the command.

See these links for specifics:
http://php.net/manual/en/function.header.php
http://en.wikipedia.org/wiki/Meta_refresh

What I mean is I have to redirect after logging out on facebook.com

I tried this but it does not work

$facebook->getLogoutUrl( array(
    'redirect_uri'  => 'http://www.mydomain.com/fblogout.php')
);

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---------------------
home.php

require 'facebook.php';
require 'fbconfig.php';
session_start();
$facebook=$_SESSION['facebook'];
$userdata=$_SESSION['userdata'];
$logoutUrl=$_SESSION['logout'];

//$logoutUrl = $facebook->getLogoutUrl(array('next' => $logoutUrl, 'session_key' => $session_key));


//$logoutUrl = $facebook->getLogoutUrl( array(
//    'redirect_uri'  => 'http://www2.mydomain.com/fblogout.php')
//);

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-----------------
fbconfig.php

<?php
$facebook_appid='xxxxx';
$facebook_app_secret='xxxxx';
$facebook = new Facebook(array(
'appId' => $facebook_appid,
'secret' => $facebook_app_secret,
));
?>

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You can specify in your facebook app setting what you want the return URL to be.

Where is that? I cannot find it on settings

instead of this,
$facebook->getLogoutUrl( array(
    'redirect_uri'  => 'http://www.mydomain.com/fblogout.php')
);

try,

echo "<script>window.location = 'http://www.mydomain.com/fblogout.php'</script>";

I need to log-out on both facebook website and on my site.

If I send them to my logout page first, how can I send them to facebook page if the session has already been destroyed?