#Fixes::157000819::yogeshwar::My preference signature block image upload issue

kcfinder/lib/class_gd.php

@@ -52,8 +52,13 @@ class gd {
             $height = @imagesy($image);
 
         } elseif (is_array($image)) {
-            list($key, $width) = each($image);
-            list($key, $height) = each($image);
+            $key = key($image);
+            $width = current($image);
+            next($image);
+
+            $key = key($image);
+            $height = current($image);
+            next($image);
             $image = imagecreatetruecolor($width, $height);
 
         } elseif (false !== (list($width, $height, $type) = @getimagesize($image))) {
@@ -71,8 +76,8 @@ class gd {
         }
 
         $return = (
-            is_resource($image) &&
-            (get_resource_type($image) == "gd") &&
+            ((is_resource($image) && get_resource_type($image) === 'gd') ||
+            (is_object($image) && $image instanceof \GDImage)) &&
             isset($width) &&
             isset($height) &&
             (preg_match('/^[1-9][0-9]*$/', $width) !== false) &&