From 65fc380fa2801cc92d1b6761b7aad7b197083ac6 Mon Sep 17 00:00:00 2001
From: Francis Besset <francis.besset@gmail.com>
Date: Thu, 17 Nov 2011 19:58:23 +0100
Subject: [PATCH] Fixed issue #16

---
 ServiceDefinition/Dumper/WsdlDumper.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ServiceDefinition/Dumper/WsdlDumper.php b/ServiceDefinition/Dumper/WsdlDumper.php
index bf348e2..1d31687 100644
--- a/ServiceDefinition/Dumper/WsdlDumper.php
+++ b/ServiceDefinition/Dumper/WsdlDumper.php
@@ -82,7 +82,10 @@ class WsdlDumper implements DumperInterface
                 $this->qualify($this->getRequestMessageName($method)),
                 $this->qualify($this->getResponseMessageName($method))
             );
-            $portOperation->setAttribute('parameterOrder', implode(' ', array_keys($requestParts)));
+
+            if (!empty($requestParts)) {
+                $portOperation->setAttribute('parameterOrder', implode(' ', array_keys($requestParts)));
+            }
 
             $baseBinding = array(
                 'use'           => 'literal',