diff --git a/src/Reducer/BinaryOpReducer.php b/src/Reducer/BinaryOpReducer.php
index 8a806cb..855be5f 100644
--- a/src/Reducer/BinaryOpReducer.php
+++ b/src/Reducer/BinaryOpReducer.php
@@ -104,8 +104,16 @@ public function reduceMod(BinaryOp\Mod $node)
     { return $this->postProcess($node, $this->left($node) % $this->right($node)); }
 
     public function reduceMul(BinaryOp\Mul $node)
-    { return $this->postProcess($node, $this->left($node) * $this->right($node)); }
+    {
+        $left = $this->left($node);
+        $right = $this->right($node);
 
+        if (is_numeric($left) && is_numeric($right)) {
+            return $this->postProcess($node, $left * $right);
+        }
+
+        return null;
+    }
     public function reduceNotEqual(BinaryOp\NotEqual $node)
     { return $this->postProcess($node, $this->left($node) != $this->right($node)); }
 
diff --git a/src/Utils.php b/src/Utils.php
index b421cd8..74edb7e 100644
--- a/src/Utils.php
+++ b/src/Utils.php
@@ -14,7 +14,7 @@ class Utils
 {
     public static function scalarToNode($value, $attrs = array())
     {
-        if (!is_array($value)) { // Do this for arrays later
+        if (is_scalar($value) || $value === null) { // Do this for arrays later
             $attrs[AttrName::VALUE] = new ScalarValue($value);
         }
         if (is_int($value)) {
@@ -44,7 +44,7 @@ public static function scalarToNode($value, $attrs = array())
             $attrs[AttrName::VALUE] = new ArrayVal($valArray);
             return new Node\Expr\Array_($items, $attrs);
         }
-        throw new \Exception("Unknown value type");
+        return null; // Skip unknown value types silently to protect against future weird types without killing deobfuscation
     }
 
     public static function getValueRef(Node $node)