不能一次显示几个

Question

it is such that I have a fireman page to Danish firefighters in Copenhagen. it is such that they have an educational background in it, but I would like to have made ​​such that it will only be shown once. Thus their education so that the safety will be shown for example 4 time if someone has forgotten all about education.

function Uddannelse_boxxen()
{
    if ($stmt = $this->mysqli->prepare('SELECT `id`, `rank_U`, `godkendt` FROM `uddannelse` WHERE `id_bruger` = ? ORDER BY `uddannelse`.`id` DESC')) { 

        $stmt->bind_param('i', $id_bruger);
        $id_bruger = $_GET["id"];

        $stmt->execute();

        $stmt->bind_result($id, $rank_U, $godkendt);

        while ($stmt->fetch()) {
        if($godkendt == 1)
        {

            /*

                Uddannelse indhold til din profil kan ret og tilføj billeder og tekst!!

            */

            if($rank_U == 3 and $error != 1)
            {
                echo "<li><img src =\"/indhold/uddannelse/holdleder.jpg\" title=\"Holdleder brand\"></li>";
                $error = 1;
            }
            elseif($rank_U == 2 and $error != 1)
            {
                echo "<li><img src =\"/indhold/uddannelse/grund_brand.jpg\" title=\"Funktion brand\"></li>";
                $error = 1;
            }
            elseif($rank_U == 1 and $error != 1)
            {
                echo "<li><img src =\"/indhold/uddannelse/grund_brand.jpg\" title=\"Grund Brand\"></li>";
                $error = 1;
            }




            if($rank_U == 6 and $error != 2)
            {
                echo "<li><img src =\"/indhold/uddannelse/holdleder.jpg\" title=\"Holdleder redning\"></li>";
                $error = 2;
            }
            elseif($rank_U == 4 and $error != 2)
            {
                echo "<li><img src =\"/indhold/uddannelse/redning.jpeg\" title=\"Grund redning\"></li>";
                $error = 2;
            }
            elseif($rank_U == 5 and $error != 2)
            {
                echo "<li><img src =\"/indhold/uddannelse/redning.jpeg\" title=\"Funktion redning\"></li>";
                $error = 2;
            }



            if($rank_U == 9 and $error != 3)
            {
                echo "<li><img src =\"/indhold/uddannelse/holdleder.jpg\" title=\"Holdleder inkvartering/forplejning\"></li>";
                $error = 3;
            }
            elseif($rank_U == 7 and $error != 3)
            {
                echo "<li><img src =\"/indhold/uddannelse/forplejning.jpg\" title=\"Grund inkvartering/forplejning\"></li>";
                $error = 3;
            }

            elseif($rank_U == 8 and $error != 3)
            {
                echo "<li><img src =\"/indhold/uddannelse/forplejning.jpg\" title=\"Funktion inkvartering/forplejning\"></li>";
                $error = 3;
            }


            if($rank_U == 12 and $error != 4)
            {
                echo "<li><img src =\"/indhold/uddannelse/holdleder.jpg\" title=\"Holdleder kommunikation\"></li>";
                $error = 4;
            }
            elseif($rank_U == 10 and $error != 4)
            {
                echo "<li><img src =\"/indhold/uddannelse/sine.jpg\" title=\"Grund kommunikation\"></li>";
                $error = 4;
            }
            elseif($rank_U == 11 and $error != 4)
            {
                echo "<li><img src =\"/indhold/uddannelse/sine.jpg\" title=\"Funktion kommunikation\"></li>";
                $error = 4;
            }



            if($rank_U == 13 and $error != 5)
            {
                echo "<li><img src =\"/indhold/uddannelse/Chauffor.jpg\" title=\"Chauffør\"></li>";
                $error = 5;
            }


            if($rank_U == 14 and $error != 6)
            {
                echo "<li><img src =\"/indhold/uddannelse/nodbehandler.jpg\" title=\"Nødbehandler\"></li>";
                $error = 6;
            }


            if($rank_U == 15 and $error != 7)
            {
                echo "<li><img src =\"/indhold/uddannelse/lagebil.jpg\" title=\"Kystlivredder\"></li>";
                $error = 7;
            }


            if($rank_U == 16 and $error != 8)
            {
                echo "<li><img src =\"/indhold/uddannelse/redning.jpeg\" title=\"Redningsdykker\"></li>";
                $error = 8;
            }

            if($rank_U == 17 and $error != 9)
            {
                echo "<li><img src =\"/indhold/uddannelse/Instruktor.jpg\" title=\"Røgdykkerinstruktør\"></li>";
                $error = 9;
            }


            if($rank_U == 18 and $error != 10)
            {
                echo "<li><img src =\"/indhold/uddannelse/Instruktor.jpg\" title=\"Overtændingsinstruktør\"></li>";
                $error = 10;
            }
            if($rank_U == 19 and $error != 11)
            {
                echo "<li><img src =\"/indhold/uddannelse/Instruktor.jpg\" title=\"Førstehjælpsinstruktør\"></li>";
                $error = 11;
            }

            if($rank_U == 20 and $error != 12)
            {
                echo "<li><img src =\"/indhold/uddannelse/Instruktor.jpg\" title=\"Instruktør i Håndtering af tilskadekomne og førstehjælp\"></li>";
                $error = 12;
            }


        }


        }

        /* Luk statement */
        $stmt->close();

    } else {
        /* Der er opstået en fejl */
        echo 'Der opstod en fejl i erklæringen: ' . $this->mysqli->error;
    }   
}

So my problem right now is that it does not have to show several at once if the person has "click" more time getting to be sure.