--- /dev/null
+# void http\Env\Response::__construct()
+
+Create a new env response message instance.
+
+## Params:
+
+None.
+
+## Throws:
+
+* http\Exception.
+
+## Example:
+
+ <?php
+ $res = new http\Env\Response;
+ $res->setContentType("text/plain");
+ $res->getBody()->append("Hello world!\n");
+ $res->send(STDOUT);
+ ?>
+
+Yields:
+
+ HTTP/1.1 200 OK
+ Accept-Ranges: bytes
+ Content-Type: text/plain
+ ETag: "b2a9e441"
+
+ Hello world!