Content-Negotiation with the help of Renderer and Formatters

Lib/Formatter/Xml.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace BSR\Lib\Formatter;
+
+class Xml extends Formatter {
+    protected static function init() {
+        self::registerFormats(array(
+            'text/xml',
+            'application/xml',
+            'application/x-xml',
+        ));
+    }
+
+    public function render($data) {
+        throw new \RuntimeException('Not implemented yet.');
+    }
+}