WP: Get common items like post title and categories

gistfile1

<?php 

/**
 * Gets user information
 */

$user_info = get_userdata($user_id); // returns the user class with standard items
$user_info = get_user_meta($user_id); // returns every single meta stored in the users table

/**
 * Gets post title
 */
$post = get_post();
$title = strtolower($post->post_title);