PHP Timed redirect not redirecting? - php

Question

Have this code on my site to redirect users back to the homepage once logged out and destroys their session. Was working perfectly before when I was using my other hosting account to host the site, but now I've changed the host, it doesn't seem to work anymore ? It isn't actually doing anything. It does destroy session but doesn't redirect? The domain has remained the same and everything so I don't understand what is wrong here? Any ideas?
<?
session_start();
if(!isset($_REQUEST['logmeout'])){
echo "<strong><font color=green>Are you sure you want to logout?</font></strong><br />";
echo "<a href=logout.php?logmeout>Yes</a> | <a href=javascript:history.back()>No</a>";
}
else {
session_destroy();
if(!session_is_registered('first_name')){
echo "<center><font color=red><strong>You have now been logged out.</strong></font></center><br />";
echo "<center>You will be redirected in 3 second...</center><br />";
/* Redirect browser */
header('Refresh: 3;url=http://www.basecentre.co.uk/');
/* Make sure that code below does not get executed when we redirect. */
exit;
}
}
?>

Answer 1

TRY THIS
echo "<meta http-equiv='refresh' content='0;url=http://www.yoursite.com'>";
OR
use flush() before header call

Answer 2

Your previous hosting may have had automatic output buffering enabled.
To avoid "headers already sent" errors please change
echo "<center><font color=red><strong>You have now been logged out.</strong></font></center><br />";
echo "<center>You will be redirected in 3 second...</center><br />";
/* Redirect browser */
header('Refresh: 3;url=http://www.basecentre.co.uk/');
to
/* Redirect browser */
header('Refresh: 3;url=http://www.basecentre.co.uk/');
echo "<center><font color=red><strong>You have now been logged out.</strong></font></center><br />";
echo "<center>You will be redirected in 3 second...</center><br />";
And note that the header() function is occurring before the echo of any content.

Answer 3

You can't do header after any output. There's a setting in the php.ini to change this, but otherwise, it's better practice to send your headers before any output.
But, it looks like you're trying to give them a notification before they get redirected anywhere. To preserve this, just do it with javascript the same way you did on the other one..
echo "<center><font color=red><strong>You have now been logged out.</strong></font></center><br />";
echo "<center>You will be redirected in <span id="time">3<span> second...</center><br />";
//And then echo the redirect script.
echo <<<JAVASCRIPT
<script>
var count = 3;
var counter = setInterval(timer, 1000);
function timer() {
count = count - 1;
if (count <= 0) {
window.location.pathname = '/user/index';
}
document.getElementById("time").innerHTML = count;
}
window.onload = timer();
</script>
JAVASCRIPT;