Erreur Invalid argument

(11-07-2011 22:23)

Code :

<?php

                            $pL=GetLatestForumPosts();

     Ligne 20 -->                       foreach ($pL as $k=>$p)

                            {

                                $sj=$p['topic_name'];

                                if (strlen($p['topic_name'])>45)

                                    $sj=substr($p['topic_name'], 0, 45)."...";

                                echo '<div id="forum-message-'.($k+1).'">

                                    <b class="white">Sujet: </b><a href="http://forum.ezalion.fr/viewtopic.php?pid='.$p['id'].'#p'.$p['id'].'" class="orange">'.utf8_encode($sj).'</a><br />

                                    <b class="white">Par:</b> '.utf8_encode($p['poster']).'

                                    <date>'.ToRelativeDate($p['posted']).'</date>

                                    </div>';

                            }

                            ?>

Erreur :

Code :

Warning: Invalid argument supplied for foreach() in /home/www/http_ezalion/http_www/global/bas.php on line 20

Pas d'idée sur le coup :/