dedecms相关文章中实现orderby参数排列的方法

 if( empty($arcid) || $byabs==0 ) {
 $orderquery = ” order by arc.id desc “;
 }
 else {
 $orderquery = ” order by ABS(arc.id – “.$arcid.”) “;
 }

 if($orderby==’hot’ || $orderby==’click’) $orderquery = ” order by arc.click desc”;
 else if($orderby == ‘sortrank’ || $orderby==’pubdate’) $orderquery = ” order by arc.sortrank desc”;
 else if($orderby == ‘id’) $orderquery = ” order by arc.id desc”;
 else if($orderby == ‘rand’) $orderquery = ” order by rand()”;