Problem with functions

[gilgimech]

I have this function that checks if a user is logged in. If they aren't it redirects them to the front page.

 

If I have it directly on each page like this.

 

if ($context['user']['is_guest']) {
header('Location:http://www.netgamegurus.com/index.php');
}

 

It works fine, but if I put it in a function on an external page it won't execute. This is the function code

 

function loggin_check() {
if ($context['user']['is_guest']) {
	header('Location:http://www.netgamegurus.com/index.php');
}
}

 

And I call like this

 

loggin_check();

 

I just don't understand why it won't work.

 

[JustLikeIcarus]

try rewritting it like this.

 

function loggin_check($user) {
    if ($user['is_guest']) {
        header('Location:http://www.netgamegurus.com/index.php');
    }
}

 

Then call like this.

loggin_check($context['user']);