From 173fec766f32fb006a44fd926c13d6e549b79916 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Tue, 21 Jun 2016 14:12:09 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BModel=E7=B1=BB=E7=9A=84toarra?=
 =?UTF-8?q?y=E6=96=B9=E6=B3=95?=
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---
 library/think/Model.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/think/Model.php b/library/think/Model.php
index d51160d0..7b7fc3f1 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -450,7 +450,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
             if ($val instanceof Model || $val instanceof Collection) {
                 // 关联模型对象
                 $item[$key] = $val->toArray();
-            } elseif (is_array($val) && isset($val[0]) && $val[0] instanceof Model) {
+            } elseif (is_array($val) && reset($val) instanceof Model) {
                 // 关联模型数据集
                 $data = [];
                 foreach ($val as $k => $value) {