From 074f0286dc7e8670cf4f953a388b4f1163cb4ec2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20B=C3=B6hmer?= <jan.h.boehmer@gmx.de>
Date: Tue, 7 Jan 2020 19:38:11 +0100
Subject: [PATCH] Fixed strict types exception in attachments list.

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

diff --git a/src/Services/Attachments/AttachmentManager.php b/src/Services/Attachments/AttachmentManager.php
index 2d43721e..95c0bc27 100644
--- a/src/Services/Attachments/AttachmentManager.php
+++ b/src/Services/Attachments/AttachmentManager.php
@@ -157,7 +157,7 @@ class AttachmentManager
         //Taken from: https://www.php.net/manual/de/function.filesize.php#106569 and slightly modified
 
         $sz = 'BKMGTP';
-        $factor = (int) floor((strlen($bytes) - 1) / 3);
+        $factor = (int) floor((strlen((string) $bytes) - 1) / 3);
 
         return sprintf("%.{$decimals}f", $bytes / 1024 ** $factor).@$sz[$factor];
     }