From 1dc847ddf7dab1e4df8df13dc732a604c9069b1a Mon Sep 17 00:00:00 2001
From: Davide Porrovecchio <pdavide@users.noreply.github.com>
Date: Fri, 30 Mar 2018 23:23:49 +0200
Subject: [PATCH] Fixed check on empty queue

When using phpredis, `blpop` returns an empty array if no elements are found in the list.
This can be easily deduced looking at [this test](https://github.com/phpredis/phpredis/blob/300c72510c48e210338826b713f260a4eda8abc7/tests/RedisTest.php#L833).

Fix #23756.
---
 src/Illuminate/Queue/RedisQueue.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Illuminate/Queue/RedisQueue.php b/src/Illuminate/Queue/RedisQueue.php
index a4d9499b63ee..7bda32fb8d3f 100644
--- a/src/Illuminate/Queue/RedisQueue.php
+++ b/src/Illuminate/Queue/RedisQueue.php
@@ -229,7 +229,7 @@ protected function blockingPop($queue)
     {
         $rawBody = $this->getConnection()->blpop($queue, $this->blockFor);
 
-        if (! is_null($rawBody)) {
+        if (! empty($rawBody)) {
             $payload = json_decode($rawBody[1], true);
 
             $payload['attempts']++;