/**
* 获取前辈ID (ID号)
*@param $types array 分类结果集
*@param $id int 本类ID
*@param $pid int 要获取分类的父ID
*@return int 返回类ID
*/
function getTopId($types, $id, $pid = 0)
{
$str = '';
foreach ($types as $v) {
if ($v['pid'] != $pid) {
if ($v['id'] == $id) {
$str = $v['pid'];
$st = getTopId($types, $v['pid']);
if ($st) {
$str = $st;
}
}
}
}
return $str;
}
public function getBrands()
{
$id = I('id');
$types = M('type')->field('id,pid')->select();
$typeId = getTopId($types, $id);
//获取顶级分类
if (!$typeId) {
$typeId = $id;
//如果没有父类，去本类
}
$brands = M("brands");
$data = $brands->field('id,type_id,name')->select();
//遍历得到含有类别$typeId的品牌
foreach ($data as $v) {
$index = strpos($v['type_id'], "{$typeId}");
//返回查找的类ID在品牌type_id 字串中出现位置
//判断品牌中是否有查找的类，有则组合进数组，(二维)
if ($index !== false) {
$brandList['id'][] = $v['id'];
$brandList['name'][] = $v['name'];
}
}
$this->ajaxReturn($brandList);
//ajax返回所需品牌数据
}
