Content-Negotiation with the help of Renderer and Formatters

Lib/Renderer.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace BSR\Lib;
+
+use BSR\Lib\Formatter\Formatter;
+
+class Renderer {
+    private static $statusMessages = array(
+        200 => 'Ok',
+        400 => 'Bad request',
+        404 => 'Not Found',
+        403 => 'Not Authorized',
+        500 => 'Server Error',
+    );
+
+    public function __construct() {
+        ob_start();
+    }
+
+    public function render($status, $data) {
+        header(sprintf('HTTP/1.0 %s %s', $status, self::$statusMessages[$status]));
+
+        ob_clean();
+        flush();
+
+        $formatter = Formatter::getFormatter();
+        $formatter->render($data);
+    }
+}