Advert Post Type (functions.php)

<?php
add_action( 'init', 'info_advert_init' );

/* Here we create our Advertisment Custom Post Types */
function info_advert_init() {

    $labels = array(
        'name' => _x( 'Content Advertisment', 'Content Advertisments' ),
        'singular_name' => _x( 'Content Advertisment', 'Content Advertisment' ),
        'add_new' => _x( 'Add New', 'advert' ),
        'add_new_item' => __( 'Add New Advertisment' ),
        'edit_item' => __( 'Edit Advertisment' ),
        'new_item' => __( 'New Advertisment' ),
        'view_item' => __( 'View Advertisment' ),
        'search_items' => __( 'Search Advertisments' ),
        'not_found' =>  __( 'No Advertisment found' ),
        'not_found_in_trash' => __( 'No Advertisments found in Trash' ),
        'parent_item_colon' => '',
        'show_in_nav_menus' => false
    );

    $args = array( 'labels' => $labels,
        'public' => true,
        'publicly_queryable' => true,
        'show_ui' => true,
        'query_var' => true,
        'rewrite' => true,
        'capability_type' => 'post',
        'hierarchical' => false,
        'menu_position' => null,
        'supports' => array( 'title', 'editor')
    );

    register_post_type( 'advert', $args );
}