织梦dedecms调用指定栏目的信息

/**
 * 调用指定栏目的信息
 * @param  int  $channelid [栏目ID]
 * @param  string  $field     [调用字段，默认整个数组]
 * @return string || array
 */
function getChannelInfo($channelid, $field) {
global $dsql;
$channelid = (int) $channelid;
$sqlquery = "SELECT * FROM `dede_arctype` WHERE `id` = '{$channelid}' LIMIT 0,1";
$cInfo = $dsql->GetOne($sqlquery);
if (!is_array($cInfo) || empty($cInfo)) {
return FALSE;
}
if (!empty($field)) {
return $cInfo[$field];
}
return $cInfo;
}