From 2f33b69786834d11e0e80c73e78d68edcae09a92 Mon Sep 17 00:00:00 2001
From: Matthias Zronek <mat@lentils.at>
Date: Mon, 28 Oct 2019 11:03:44 +0100
Subject: [PATCH] Bugfix for option sanitizer

---
 lib/Minify/App.php | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/Minify/App.php b/lib/Minify/App.php
index 9ee4a1e..bc885b2 100644
--- a/lib/Minify/App.php
+++ b/lib/Minify/App.php
@@ -80,10 +80,12 @@ class App extends Container
             };
             $varNames = array_map($prefixer, $propNames);
 
-            $varDefinedChecker = function ($name) {
-                return array_key_exists($name, get_defined_vars());
-            };
-            $varNames = array_filter($varNames, $varDefinedChecker);
+            $varDefined = get_defined_vars();
+
+            $varNames = array_filter($varNames, function($name) use($varDefined)
+            {
+                return array_key_exists($name, $varDefined);
+            });
 
             $vars = compact($varNames);