From e40b717b175dd30ed501ef4ec7ec9d0333bbd0bd Mon Sep 17 00:00:00 2001
From: Nicolas Grekas <nicolas.grekas@gmail.com>
Date: Fri, 23 May 2014 16:20:40 +0200
Subject: [PATCH] [Debug] preserve modified error level

---
 src/Symfony/Component/Debug/ErrorHandler.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Symfony/Component/Debug/ErrorHandler.php b/src/Symfony/Component/Debug/ErrorHandler.php
index 850f7d9c55..2d414a011b 100644
--- a/src/Symfony/Component/Debug/ErrorHandler.php
+++ b/src/Symfony/Component/Debug/ErrorHandler.php
@@ -225,7 +225,11 @@ class ErrorHandler
         $level = array_pop(self::$stackedErrorLevels);
 
         if (null !== $level) {
-            error_reporting($level);
+            $e = error_reporting($level);
+            if ($e !== ($level | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR)) {
+                // If the user changed the error level, do not overwrite it
+                error_reporting($e);
+            }
         }
 
         if (empty(self::$stackedErrorLevels)) {