织梦dedecms拓展channel标签实现limit功能

$limit = trim(eregi_replace('limit','',$limit));if($limit!='') $limitsql = " limit $limit ";else $limitsql = " limit 0,7 "; $orwhere = '';if(isset($orwheres[0])) {    $orwhere = join(' And ',$orwheres);    $orwhere = ereg_replace("^ And",'',$orwhere);    $orwhere = ereg_replace("And[ ]{1,}And",'And ',$orwhere);}if($orwhere!='') $orwhere = " where $orwhere ";//二次开发

function lib_channel(&$ctag,&$refObj){    global $dsql;     $attlist = "typeid|0,reid|0,row|100,col|1,type|son,currentstyle|,cacheid|";    FillAttsDefault($ctag->CAttribute->Items,$attlist);    extract($ctag->CAttribute->Items, EXTR_SKIP);    $innertext = $ctag->GetInnerText();    $line = empty($row) ? 100 : $row;