From c3ac2738e5a5230df3fafcd08dbb61904d66b730 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=B5=B5=E5=8A=A0=E5=85=B4?= <977904037@qq.com>
Date: Thu, 4 Apr 2019 09:47:19 +0800
Subject: [PATCH] Update main.php
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

变量挪到比较运算符右侧
---
 php/07_linkedlist/main.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/php/07_linkedlist/main.php b/php/07_linkedlist/main.php
index 736b048..4cd9b31 100644
--- a/php/07_linkedlist/main.php
+++ b/php/07_linkedlist/main.php
@@ -191,7 +191,7 @@ Class SingleLinkedListAlgo
             ++$i;
         }
 
-        if ($fast == null) {
+        if (null == $fast) {
             return true;
         }
 
@@ -305,4 +305,4 @@ echo '---------------------- 求链表的中间结点 ----------------------' .
 $listAlgo->setList($list);
 $middleNode = $listAlgo->findMiddleNode();
 var_dump($middleNode->data);
-echo '-------------------------------------------------------------'. PHP_EOL . PHP_EOL;
\ No newline at end of file
+echo '-------------------------------------------------------------'. PHP_EOL . PHP_EOL;