From 1c7921ed02a2bb225602a21648affd46d0cb86f9 Mon Sep 17 00:00:00 2001
From: Yahnis Elsts <whiteshadow@w-shadow.com>
Date: Fri, 9 Jun 2017 23:22:46 +0300
Subject: [PATCH] Fix PHP notice "Only variables should be passed by
 reference".

---
 src/ChartData.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ChartData.php b/src/ChartData.php
index db9d2a1..d4cb93e 100644
--- a/src/ChartData.php
+++ b/src/ChartData.php
@@ -138,7 +138,7 @@ public function getTotalsByDate() {
 	}
 
 	public function getPieChartData($label = 'Value', $dayIndex = -1) {
-		$day = reset(array_keys(array_slice($this->totalsByDate, $dayIndex, 1)));
+		$day = (array_keys(array_slice($this->totalsByDate, $dayIndex, 1)))[0];
 
 		$rows = [];
 		$isAllZero = true;