Existence check.

horde · Dec 31, 2014 · ca69c9e · ca69c9e
1 parent 7459015
commit ca69c9e
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/framework/Compress/lib/Horde/Compress/Tnef/Rtf.php b/framework/Compress/lib/Horde/Compress/Tnef/Rtf.php
@@ -329,7 +329,11 @@ protected function _rtf2text($text)
             case '{':
                 // New subgroup starts, add new stack element and write the data
                 // from previous stack element to it.
-                array_push($stack, $stack[$j++]);
+                if (!empty($stack[$j])) {
+                    array_push($stack, $stack[$j++]);
+                } else {
+                    $j++;
+                }
                 break;
             case '}':
                 array_pop($stack);
@@ -343,7 +347,7 @@ protected function _rtf2text($text)
                 break;
             default:
                 // Add other data to the output stream if required.
-                if ($this->_rtfIsPlain($stack[$j])) {
+                if (!empty($stack[$j]) && $this->_rtfIsPlain($stack[$j])) {
                     $document .= $c;
                 }
                 break;