| Horde_Stream_Wrapper_CombineStream | Provides access to the CombineStream stream wrapper. |
| Horde_Stream_Wrapper_StringStream | Provides access to the StringStream stream wrapper. |
| Horde_Stream_Wrapper_Combine | A stream wrapper that will combine multiple strings/streams into a single stream. |
| Horde_Stream_Wrapper_String | A stream wrapper that will treat a native PHP string as a stream. |