From d8ac917c4338cc9058d317b3962cb34c13bec2db Mon Sep 17 00:00:00 2001
From: sockball <sockday@yahoo.com>
Date: Thu, 19 Dec 2019 13:44:20 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E5=8F=98=E9=87=8F=E5=88=A4?=
 =?UTF-8?q?=E6=96=AD=E9=94=99=E8=AF=AF?=
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---
 library/think/process/pipes/Windows.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/think/process/pipes/Windows.php b/library/think/process/pipes/Windows.php
index bba7e9b8..1b8b0d4f 100644
--- a/library/think/process/pipes/Windows.php
+++ b/library/think/process/pipes/Windows.php
@@ -196,7 +196,7 @@ class Windows extends Pipes
             return;
         }
 
-        if (null !== $w && 0 < count($r)) {
+        if (null !== $r && 0 < count($r)) {
             $data = '';
             while ($dataread = fread($r['input'], self::CHUNK_SIZE)) {
                 $data .= $dataread;