fix replacement of optional parameters in the URL::transpose method.

changes.md

@@ -2,11 +2,23 @@
 
 ## Contents
 
+- [Laravel 3.2](#3.2)
+- [Upgrading From 3.1](#upgrade-3.2)
 - [Laravel 3.1.1](#3.1.1)
 - [Upgrading From 3.1](#upgrade-3.1.1)
 - [Laravel 3.1](#3.1)
 - [Upgrading From 3.0](#upgrade-3.1)
 
+<a name="3.2"></a>
+## Laravel 3.2
+
+- Fixed replacement of optional parameters in URL::transpose method.
+
+<a name="upgrade-3.2"></a>
+## Upgrading From 3.1
+
+- Replace the **laravel** folder.
+
 <a name="3.1.1"></a>
 ## Laravel 3.1.1
 

laravel/url.php

@@ -304,8 +304,8 @@ class URL {
 
 		// If there are any remaining optional place-holders, we'll just replace
 		// them with empty strings since not every optional parameter has to be
-		// in the array of parameters that were passed.
-		$uri = str_replace(array_keys(Router::$optional), '', $uri);
+		// in the array of parameters that were passed to us.
+		$uri = preg_replace('/\(.+?\)/', '', $uri);
 
 		return trim($uri, '/');
 	}