Prevent from crashes when url doesn't exists

Cherry picked from 3655b79..0d62434
amphp · Jul 17, 2014 · add4e38 · add4e38
1 parent 22c9004
commit add4e38
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/lib/Addr/Client.php b/lib/Addr/Client.php
@@ -255,7 +255,10 @@ private function onSocketReadable()
      */
     private function completePendingLookup($id, $addr, $type)
     {
-        call_user_func($this->pendingLookups[$id]['callback'], $addr, $type);
+        if (isset($this->pendingLookups[$id])) {
+            call_user_func($this->pendingLookups[$id]['callback'], $addr, $type);
+        }
+
         unset($this->pendingLookups[$id]);
     }