1 files changed, 3 insertions, 3 deletions
diff --git a/activesupport/lib/active_support/core_ext/hash/conversions.rb b/activesupport/lib/active_support/core_ext/hash/conversions.rb
index d3ab3b3590..1cdf7d5c54 100644
--- a/activesupport/lib/active_support/core_ext/hash/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/hash/conversions.rb
@@ -9,13 +9,13 @@ class Object
   end
 
   def to_query(key) #:nodoc:
-    "#{CGI.escape(key.to_s)}=#{CGI.escape(to_param || "")}"
+    "#{CGI.escape(key.to_s)}=#{CGI.escape(to_param.to_s)}"
   end
 end
 
 class Array
   def to_query(key) #:nodoc:
-    collect { |value| value.to_query("#{key}[]") } * '&'
+    collect { |value| value.to_query("#{key}[]") }.sort * '&'
   end
 end
 
@@ -48,7 +48,7 @@ module ActiveSupport #:nodoc:
         def to_query(namespace = nil)
           collect do |key, value|
             value.to_query(namespace ? "#{namespace}[#{key}]" : key)
-          end * '&'
+          end.sort * '&'
         end
 
         def to_xml(options = {})