此方法收集网络，本人暂时还没用过，先收藏。

<?
            $a="$bqr[infotags]";
            $str=str_replace('，', ',', $a);
            $tag='';
            $t= explode(",", $str);
            
                    for($i=0;$i<count($t);$i++)
                    {
                            if($t[$i])
                            {
                                    $tagslink="[!--news.url--]e/tags/?tagname=".urlencode($t[$i])."";
                                    $tag.="<a href='$tagslink' target='_blank'>".$t[$i]."</a> ";
                            }
            }
            echo $tag;
            ?>