root/releases/0.1.2a/units/friends/get_friends.php

<?php

    // Gets all the friends of a particular user, as specified in $parameter[0],
    // and return it in a data structure with the idents of all the users
    
        $ident = (int) $parameter[0];
        
        if (!isset($_SESSION['friends_cache'][$ident]) || (time() - $_SESSION['friends_cache'][$ident]->created > 120)) {
            $_SESSION['friends_cache'][$ident]->created = time();
            $_SESSION['friends_cache'][$ident]->data = db_query("select friends.friend as user_id,
                                        users.name from friends
                                        left join users on users.ident = friends.friend
                                        where friends.owner = $ident");
        }
        $run_result = $_SESSION['friends_cache'][$ident]->data;
                
?>