多选的品牌保留两个作为一个标签，第二个品牌截取字符

@@ -392,17 +392,28 @@ class HelperSearch
             //清空品牌参数
             unset($params['brand']);
             //设置已选中的品牌
+            $existBrandNum = 0;
+            $existName = '';
             foreach ($brandIds as $key => $val) {
                 if (isset($brandAll[$val])) {
                     $brandParam = $brandIds;
                     unset($brandParam[$key]);
-                    $params['brand'] = implode(',', $brandParam);
-                    self::$selected['brand'] = array(
-                        'name' => $brandAll[$val],
-                        'href' => self::buildUrl($params)
-                    );
+                    if ($existBrandNum === 0) {
+                        $existName .= $brandAll[$val].'、';
+                    }
+                    if ($existBrandNum === 1){
+                        $existName .= $brandAll[$val].'...';
+                    }
+                    $existBrandNum++;
+                }
+                if ($existBrandNum > 1) {
+                    break;
                 }
             }
+            self::$selected['brand'] = array(
+                'name' => $existName,
+                'href' => self::buildUrl($params)
+            );
             ksort($brandList);
             //品牌列表排序, 添加品牌索引
             $index_key = array();
@@ -903,19 +914,8 @@ class HelperSearch
     {
         $result = array();
         $data = array();
-        $is_array_key = array(
-            'brand',
-            'style'
-        );
         foreach (self::$selected as $key => $val) {
-            if (in_array($key, $is_array_key)) {
-                foreach ($val as $k => $v) {
-                    $data[] = $v;
-                }
-            }
-            else {
                 $data[] = $val;
-            }
         }
         if ($data) {
             $result['conditions'] = $data;