织梦DedeCMS搜索指定多个栏目的文档

<form name="search" action="/plus/search.php">
<input type="hidden" name="typeid" value="1,2,3">
</form>

$typeid = (isset($typeid) && is_numeric($typeid)) ? $typeid : 0;

$typeid = intval($typeid);

$ksqls[] = " typeid IN (".GetSonIds($this->TypeID).") ";

//指定了多个栏目时

if( preg_match('#,#', $this->TypeID) )

{

    $typeids = explode(',', $this->TypeID);

    foreach($typeids as $ttid) {

        $typeidss[] = GetSonIds($ttid);

    }

    $typeidStr = join(',', $typeidss);

    $typeidss = explode(',', $typeidStr);

    $typeidssok = array_unique($typeidss);

    $typeid = join(',', $typeidssok);

    $ksqls[] = " arc.typeid IN ($typeid) ";

}

else

{

    $ksqls[] = " arc.typeid IN (".GetSonIds($this->TypeID).") ";

}