<?php

$codes = array(

    "<a href=http://www.link.de target=_blank><img src=http://www.link.de/banner1.gif alt=text border=0></a>",

    "<a href=http://www.link.de target=_blank><img src=http://www.link.de/banner2.gif alt=text border=0></a>",

    "<a href=http://www.link.de target=_blank><img src=http://www.link.de/banner3.gif alt=text border=0></a>"

);



shuffle($codes);

$i=0;

$number=1; while(list(, $code) = each($codes)) {

       if ($i>=$number) { break; }

       echo "$code";

       echo '<br>';

       $i++;

}

?>