[PHP] utilisation du foreach

// la fonction
function remplacement($chaine){
	$chaine = preg_replace('#\[b\](.+)\/b\#isU', '<strong>$1</strong>', $chaine);//gras
	$chaine = preg_replace('#\[i\](.+)\/i\#isU', '<em>$1</em>', $chaine);//italique
	$chaine = preg_replace('#\[u\](.+)\/u\#isU', '<u>$1</u>', $chaine);//souligné
	$chaine = preg_replace('#\[q\](.+)\/q\#isU', '<q>$1</q>', $chaine);//citation
	$chaine = preg_replace('#\[center\](.+)\/center\#isU', '<div style="text-align:center">$1</div>', $chaine);//centré
	$chaine = preg_replace('#\[color=(red|green|blue|yellow|purple|olive)\](.+)\/color\#isU', '<span style="color:$1">$2</span>', $chaine);//couleur
	$chaine = preg_replace('#\[url=http://(.+)\](.+)\/url\+#isU', '<a href="http://$1">$2</a>', $chaine);//lien
	$chaine = preg_replace('#\[url\]http://(.+)\/url\+#isU', '<a href="http://$1">$1</a>', $chaine);//lien
	$chaine = preg_replace('#^[a-z0-9._-]+@[a-z0-9._-]{2,}\.[a-z]{2,4}$#isU', '<a href="mailto:$0">$0</a>', $chaine);//mail
	$chaine = preg_replace('#\[img\](.+)\/img\#isU', '<img src="$1" alt="$1" />', $chaine);//image
		
		//regex des smileys
	$chaine = preg_replace('#:D#isU', ' <img src="../images/smileys/biggrin.gif" alt=":D" /> ', $chaine);
	$chaine = preg_replace('#XD#isU', ' <img src="../images/smileys/XD.png" alt="XD" /> ', $chaine);
	$chaine = preg_replace('#:\)#isU', ' <img src="../images/smileys/smile.gif" alt=":)" /> ', $chaine);
	$chaine = preg_replace('#:\(#isU', ' <img src="../images/smileys/sad.gif" alt=":(" /> ', $chaine);
	$chaine = preg_replace('#:cool:#isU', ' <img src="../images/smileys/cool.gif" alt=":cool:" /> ', $chaine);
	$chaine = preg_replace('#:o#isU', ' <img src="../images/smileys/ohmy.gif" alt=":o" /> ', $chaine);
	$chaine = preg_replace('#Zz#isU', ' <img src="../images/smileys/sleep.gif" alt="Zz" /> ', $chaine);
	$chaine = preg_replace('#:p#isU', ' <img src="../images/smileys/tongue.gif" alt=":p" /> ', $chaine);
	$chaine = preg_replace('#;\)#isU', ' <img src="../images/smileys/wink.gif" alt=";)" /> ', $chaine);
	$chaine = preg_replace('#\^\^#isU', ' <img src="../images/smileys/happy.gif" alt="^^" /> ', $chaine);
	
return $chaine;	
}


//ton code de départ  oui la fonction foreach existait et fonctionnait en php4 !!
$query = "SELECT pseudo,comment FROM raynal_chat ORDER BY id DESC LIMIT $premier_message, $nombre_entree_par_page";
$result = mysql_query($query)or die (mysql_error());

$css = 'clair';

// Puis on fait une boucle pour afficher tous les résultats :
while ($donnees = mysql_fetch_array($result) )
{
	foreach ($donnees as $element)	{
               // un petit appel de la fonction
		$element=remplacement($element);
             //affichage des données
           echo "Element: ".$element."<br />";
	
   }
}