Update Config.php (ezyang#211)

Fixed Undefined index: class
credihome · Jul 14, 2019 · 524cd08 · 524cd08
1 parent 5a90c92
commit 524cd08
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/HTMLPurifier/Config.php b/library/HTMLPurifier/Config.php
@@ -890,7 +890,7 @@ protected function triggerError($msg, $no)
             // zip(tail(trace), trace) -- but PHP is not Haskell har har
             for ($i = 0, $c = count($trace); $i < $c - 1; $i++) {
                 // XXX this is not correct on some versions of HTML Purifier
-                if ($trace[$i + 1]['class'] === 'HTMLPurifier_Config') {
+                if (isset($trace[$i + 1]['class']) && $trace[$i + 1]['class'] === 'HTMLPurifier_Config') {
                     continue;
                 }
                 $frame = $trace[$i];