<?php

class Custom_Post_Type {

    public function __construct() {
        add_action('init', array($this, 'my_custom_post_types'));
        add_filter('post_updated_messages',
                array($this, 'my_custom_post_type_messages'));
        add_action('admin_head', array($this, 'my_custom_post_type_help'));
    }

    public function my_custom_post_types() {
        $labels = array(
            'name' => 'Recipes',
            'singular_name' => 'Recipe',
            'menu_name' => 'Recipe',
            'name_admin_bar' => 'Recipe',
            'add_new' => 'Add New',
            'add_new_item' => 'Add New Recipe',
            'new_item' => 'New Recipe',
            'edit_item' => 'Edit Recipe',
            'view_item' => 'View Recipe',
            'all_items' => 'All Recipes',
            'search_items' => 'Search Recipes',
            'parent_item_colon' => 'Parent Recipes:',
            'not_found' => 'No recipes found.',
            'not_found_in_trash' => 'No recipes found in Trash.'
        );
        $args = array(
            'public' => TRUE,
            'show_ui' => TRUE,
            'show_in_admin_bar' => TRUE,
            'labels' => $labels,
            'description' => 'My yummy recipes will be published using this post type',
            'menu_icon' => 'dashicons-carrot',
            'menu_position' => 20,
            'hierarchical' => TRUE,
            'taxonomies' => array('post_tag'),
            'supports' => array('title', 'editor', 'author', 'thumbnail',
                'excerpt', 'trackbacks', 'custom-fields', 'comments',
                'revisions', 'page-attributes', 'post-formats'),
            'rewrite' => array('slug' => 'my_recipe', 'with_front' => false),
            'has_archive' => TRUE,
        );
        register_post_type('recipe', $args);
        flush_rewrite_rules();
    }

    public function my_custom_post_type_messages($messages) {
        $post = get_post();

        $messages['recipe'] = array(
            0 => '',
            1 => 'Recipe updated.',
            2 => 'Custom field updated.',
            3 => 'Custom field deleted.',
            4 => 'Recipe updated.',
            5 => isset($_GET['revision']) ? sprintf('Recipe restored to revision from %s',
                    wp_post_revision_title((int) $_GET['revision'], FALSE)) : FALSE,
            6 => 'Recipe published.',
            7 => 'Recipe saved.',
            8 => 'Recipe submitted.',
            9 => sprintf('Recipe scheduled for <strong>%1$s</strong>.',
                    date_i18n('M j, Y @ G:i', strtotime($post->post_date))),
            10 => 'Recipe draft updated.'
        );

        return $messages;
    }

    public function my_custom_post_type_help() {
        $screen = get_current_screen();

        if ('recipe' != $screen->post_type) {
            return;
        }

        $basics = array(
            'id' => 'recipe_basics',
            'title' => 'Recipe Basics',
            'content' => 'Content for help tab here - basics',
        );

        $advanced = array(
            'id' => 'recipe_advanced',
            'title' => 'Recipe Advanced',
            'content' => '<strong style="color:red;">Content for help tab here - advanced.</strong>',
        );

        $screen->add_help_tab($basics);
        $screen->add_help_tab($advanced);
    }

}

new Custom_Post_Type();

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /wordpress_learn/
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /wordpress_learn/index.php [L]
</IfModule>

# END WordPress