微调

app/Helpers/function.php

@@ -226,6 +226,7 @@ function getArticlesByPosition($postion)
  * @Date: 2021/12/1 13:28
  * @param $category_id
  * @param  int  $take
+ * @return \Illuminate\Database\Eloquent\Builder[]|\Illuminate\Database\Eloquent\Collection
  */
 function getResumesByCate($category_id, $take = 8)
 {
@@ -236,3 +237,24 @@ function getResumesByCate($category_id, $take = 8)
         ->get();
 }
 
+
+/**
+ * Notes: 获取所有下级
+ *
+ * @Author: 玄尘
+ * @Date: 2022/8/19 17:24
+ * @param $array
+ * @param $categoryId
+ * @return array
+ */
+function getAllChild($categories, $categoryId)
+{
+    $arr = array();
+    foreach ($categories as $category) {
+        if ($category['parent_id'] == $categoryId) {
+            $arr[] = $category['id'];
+            $arr   = array_merge($arr, getAllChild($categories, $category['id']));
+        };
+    };
+    return $arr;
+}