From 993cda07a619d34735e36111cca94a6da7593067 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Thu, 18 May 2017 14:26:08 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BCollection=E7=B1=BB=E7=9A=84c?=
 =?UTF-8?q?olumn=E6=96=B9=E6=B3=95?=
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---
 library/think/model/Collection.php | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/library/think/model/Collection.php b/library/think/model/Collection.php
index 08e11ad8..4e4bb4dc 100644
--- a/library/think/model/Collection.php
+++ b/library/think/model/Collection.php
@@ -16,6 +16,20 @@ use think\Model;
 
 class Collection extends BaseCollection
 {
+    /**
+     * 返回数组中指定的一列
+     * @param string        $column_key
+     * @param string|null   $index_key
+     * @return array
+     */
+    public function column($column_key, $index_key = null)
+    {
+        if (function_exists('array_column')) {
+            return array_column($this->toArray(), $column_key, $index_key);
+        }
+        return parent::column($column_key, $index_key);
+    }
+
     /**
      * 延迟预载入关联查询
      * @access public