Part on Useful names and conventions finished

controllers/notes/create.php

@@ -0,0 +1,23 @@
+<?php
+require('Validator.php');
+$heading = 'Create Note';
+$username = 'appUser';
+$password = 'password';
+$config = require('config.php');
+$db = new Database($config['database'], $username, $password);
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $errors = [];
+
+    if (! Validator::string($_POST['body'], 1, 1000)) {
+        $errors['body'] = 'A body of no more than 1000 characters is required.';
+    }
+    if (empty($errors)) {
+
+        $db->query("INSERT INTO notes (body, user_id) VALUES (:body, :user_id)", [
+            'body' => $_POST['body'],
+            'user_id' => 1
+        ]);
+    }
+}
+require 'views/notes/create.view.php';