DEDECMS获取指定栏目下面的文章数量

/**
 * 获取指定栏目下面的文章数量
 *
 * @param     string  $id  栏目id
 * @param     string  $addthis  是否包含子栏目
 * @return    string
*/
if ( ! function_exists('getTypeArcLength')) {
	function getTypeArcLength($id,$addson=true) {
		global $dsql;
		if($addson) {		
			$types = GetSonIds($id);				
			$sql = "SELECT count(id) as len FROM idea_arctiny where typeid IN ($types)";
		} else {
			$sql = "SELECT count(id) as len FROM idea_arctiny where typeid = $id";
		}
		$arclen = $dsql->GetOne($sql);
		return $arclen['len'];
	}
}

{dede:field.id function="getTypeArcLength(@me,false)"/}

{dede:type typeid='24'}
[field:id function="getTypeArcLength(@me,false)"/]
{/dede:type}