update: fix knowledge access data foreach

app/Http/Controllers/User/KnowledgeController.php

@@ -63,9 +63,9 @@ class KnowledgeController extends Controller
 
     private function formatAccessData(&$body)
     {
-        function getBetween($input, $start, $end){$substr = substr($input, strlen($start)+strpos($input, $start),(strlen($input) - strpos($input, $end))*(-1));return $substr;}
+        function getBetween($input, $start, $end){$substr = substr($input, strlen($start)+strpos($input, $start),(strlen($input) - strpos($input, $end))*(-1));return $start . $substr . $end;}
         while (strpos($body, '<!--access start-->') !== false) {
-            $accessData = '<!--access start-->' . getBetween($body, '<!--access start-->', '<!--access end-->') . '<!--access end-->';
+            $accessData = getBetween($body, '<!--access start-->', '<!--access end-->');
             if ($accessData) {
                 $body = str_replace($accessData, '<div class="v2board-no-access">'. __('You must have a valid subscription to view content in this area') .'</div>', $body);
             }