Fix bug in mysql query function

Need to remove the NULL return value from fetch_assoc() to fix usages of
count($res) for determining the number of results from a MySQL query.
This NULL return value is returned from mysqli's fetch_assoc() function
to signal no more result rows.

1 files changed, 1 insertions, 1 deletions

diff --git a/app/class/mysql.class.php b/app/class/mysql.class.php
index fae09bb..db0eb7d 100644
--- a/app/class/mysql.class.php
+++ b/app/class/mysql.class.php
@@ -53,7 +53,7 @@ class mysql extends database
             return $arr;
 
         while (($arr[] = $res->fetch_assoc()));
-        return $arr;
+        return array_filter($arr, function ($val) { return !is_null($val); });
     }
 
     /*