From 90a0b39e11822d0cd67fc0b4bb86c9a25c79c649 Mon Sep 17 00:00:00 2001
From: Arthur Schiwon <blizzz@arthur-schiwon.de>
Date: Sat, 27 Aug 2016 00:50:07 +0200
Subject: [PATCH] fix undefined offset warning

---
 controller/rest/publiccontroller.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/controller/rest/publiccontroller.php b/controller/rest/publiccontroller.php
index 917c2c02..c644d174 100644
--- a/controller/rest/publiccontroller.php
+++ b/controller/rest/publiccontroller.php
@@ -43,8 +43,12 @@ class PublicController extends ApiController {
 			return $this->newJsonErrorMessage("User could not be identified");
 		}
 
-		if ($tags[0] == "") {
-			$tags = array();
+		if (!is_array($tags)) {
+			if(is_string($tags) && $tags !== '') {
+				$tags = [ $tags ];
+			} else {
+				$tags = array();
+			}
 		}
 
 		$public = true;