From b16e8066ca89b9772dc055a3ea548eb23127596b Mon Sep 17 00:00:00 2001
From: buzatuAda <52411474+buzatuAda@users.noreply.github.com>
Date: Thu, 17 Oct 2019 14:55:27 +0300
Subject: [PATCH] fix exception array_merge() when $this->header->metadata is
 not array (#2701)

Exception gets thrown when $this->header->metadata is not an array, added extra verification in order to make sure it is and array before doing array_merge()
---
 system/src/Grav/Common/Page/Page.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/system/src/Grav/Common/Page/Page.php b/system/src/Grav/Common/Page/Page.php
index 199660852..ea10cd47b 100644
--- a/system/src/Grav/Common/Page/Page.php
+++ b/system/src/Grav/Common/Page/Page.php
@@ -1696,7 +1696,7 @@ class Page implements PageInterface
             // Get initial metadata for the page
             $metadata = array_merge($metadata, Grav::instance()['config']->get('site.metadata'));
 
-            if (isset($this->header->metadata)) {
+            if (isset($this->header->metadata) && is_array($this->header->metadata)) {
                 // Merge any site.metadata settings in with page metadata
                 $metadata = array_merge($metadata, $this->header->metadata);
             }