From 6f36a88993a07d0ccd52d813ceff27de022429c3 Mon Sep 17 00:00:00 2001
From: Arne Blankerts <Arne@Blankerts.de>
Date: Wed, 22 Jan 2014 00:48:27 +0100
Subject: [PATCH] Ensure no registered error handler will see the 'reset' error

---
 lib/PHPParser/Lexer.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/PHPParser/Lexer.php b/lib/PHPParser/Lexer.php
index 0ca5d49..b4202fc 100644
--- a/lib/PHPParser/Lexer.php
+++ b/lib/PHPParser/Lexer.php
@@ -40,10 +40,14 @@ class PHPParser_Lexer
     }
 
     protected function resetErrors() {
-        // clear error_get_last() by forcing an undefined variable error
+        // set error_get_last() to defined state by forcing an undefined variable error
+        set_error_handler(array($this, 'dummyErrorHandler'), 0);
         @$undefinedVariable;
+        restore_error_handler();
     }
 
+    private function dummyErrorHandler() { return false; }
+
     protected function handleErrors() {
         $error = error_get_last();