Makes creating custom post types more OOP in WordPress.

CustomPostType.php

<?php

class PostType
{
    private $post_type = false;
    private $name = false;
    private $singular_name = false;
    private $add_new = false;
    private $add_new_item = false;
    private $edit_item = false;
    private $new_item = false;
    private $view_item = false;
    private $search_items = false;
    private $not_found = false;
    private $not_found_in_trash = false;
    private $parent_item_colon = false;
    private $all_items = false;
    private $enter_title_here = false;
    private $public = true;
    private $exclude_from_search = false;
    private $publicly_queryable = true;
    private $menu_icon = 'dashicons-admin-post';
    private $hierarchical = false;
    private $supports = [];
    private $labels = [];
    private $args = [];

    /**
     * Constructor
     *
     * Starts this party off
     *
     * @param string $post_type The slug for the post type
     * @return void
     */
    public function __construct($post_type)
    {
        $this->post_type = $post_type;
    }


    /**
    * Setters
    */

    /**
    * Set Name
    *
    * @param string $data
    * @return $this
    */
    public function setNameLabel(string $data)
    {
        $this->name = $data;

        return $this;
    }


    /**
    * Set Singular Name
    *
    * @param string $data
    * @return $this
    */
    public function setSingularNameLabel(string $data)
    {
        $this->singular_name = $data;

        return $this;
    }


    /**
    * Set Add New Label
    *
    * @param string $data
    * @return $this
    */
    public function setAddNewLabel(string $data)
    {
        $this->add_new = $data;

        return $this;
    }


    /**
    * Set Add New Item label
    *
    * @param string $data
    * @return $this
    */
    public function setAddNewItemLabel(string $data)
    {
        $this->add_new_item = $data;

        return $this;
    }


    /**
    * Set Edit Item label
    *
    * @param string $data
    * @return $this
    */
    public function setEditItemLabel(string $data)
    {
        $this->edit_item = $data;

        return $this;
    }


    /**
    * Set New Item Label
    *
    * @param string $data
    * @return $this
    */
    public function setNewItemLabel(string $data)
    {
        $this->new_item = $data;

        return $this;
    }


    /**
    * Set View Item label
    *
    * @param string $data
    * @return $this
    */
    public function setViewItemLabel(string $data)
    {
        $this->view_item = $data;

        return $this;
    }


    /**
    * Set Search Label
    *
    * @param string $data
    * @return $this
    */
    public function setSearchItemsLabel(string $data)
    {
        $this->search_items = $data;

        return $this;
    }


    /**
    * Set Not Found Label
    *
    * @param string $data
    * @return $this
    */
    public function setNotFoundLabel(string $data)
    {
        $this->not_found = $data;

        return $this;
    }


    /**
    * Set Not Found in Trash label
    *
    * @param string $data
    * @return $this
    */
    public function setNotFoundInTrashLabel(string $data)
    {
        $this->not_found_in_trash = $data;

        return $this;
    }


    /**
    * Set Parent Item Colon label
    *
    * @param string $data
    * @return $this
    */
    public function setParentItemColonLabel(string $data)
    {
        $this->parent_item_colon = $data;

        return $this;
    }


    /**
    * Set All Items label
    *
    * @param string $data
    * @return $this
    */
    public function setAllItemsLabel(string $data)
    {
        $this->all_items = $data;

        return $this;
    }


    /**
    * Set Enter Title Here label
    *
    * @param string $data
    * @return $this
    */
    public function setEnterTitleHereLabel(string $data)
    {
        $this->enter_title_here = $data;

        return $this;
    }


    /**
    * Set Public
    *
    * @param bool $data
    * @return $this
    */
    public function setPublic(bool $data)
    {
        $this->public = $data;

        return $this;
    }


    /**
    * Set Exclude from Search
    *
    * @param bool $data
    * @return $this
    */
    public function setExcludeFromSearch(bool $data)
    {
        $this->exclude_from_search = $data;

        return $this;
    }


    /**
    * Set Publicly Queriable
    *
    * @param bool $data
    * @return $this
    */
    public function setPubliclyQueryable(bool $data)
    {
        $this->publicly_queryable = $data;

        return $this;
    }


    /**
    * Set Dashicon
    *
    * @param string $data
    * @return $this
    */
    public function setMenuIcon(string $data)
    {
        $this->menu_icon = $data;

        return $this;
    }


    /**
    * Set Hierarchical
    *
    * @param string $data
    * @return $this
    */
    public function setHierarchical(bool $data)
    {
        $this->hierarchical = $data;

        return $this;
    }


    /**
    * Set Post Type Supports
    * https://codex.wordpress.org/Function_Reference/post_type_supports
    *
    * @param string $data
    * @return $this
    */
    public function setSupports(array $data)
    {
        $this->supports = $data;

        return $this;
    }



    /**
     * Set Labels
     *
     * Sets the "Label" array
     *
     * @return $this
     */
    private function setLabels()
    {

        $labels = [
            'name' => 'getNameLabel',
            'singular_name' => 'getSingularNameLabel',
            'add_new' => 'getAddNewLabel',
            'add_new_item' => 'getAddNewItemLabel',
            'edit_item' => 'getEditItemLabel',
            'new_item' => 'getNewItemLabel',
            'view_item' => 'getViewItemLabel',
            'search_items' => 'getSearchItemsLabel',
            'not_found' => 'getNotFoundLabel',
            'not_found_in_trash' => 'getNotFoundInTrashLabel',
            'parent_item_colon' => 'getParentItemColonLabel',
            'all_items' => 'getAllItemsLabel',
            'enter_title_here' => 'getEnterTitleHereLabel',
        ];

        $data = [];

        foreach ($labels as $key => $value) {
            if($this->$value() != false){
                $data[$key] = $this->$value();
            }
        }

        $this->labels = $data;

        return $this;
    }




    /**
    * Getters
    */

    /**
    * Get Post Type
    */
    private function getPostType()
    {
        return $this->post_type;
    }

    /**
    * Get Name
    */
    private function getNameLabel()
    {
        return $this->name;
    }


    /**
    * Get Singular Name
    */
    private function getSingularNameLabel()
    {
        return $this->singular_name;
    }


    /**
    * Get Add New Label
    */
    private function getAddNewLabel()
    {
        return $this->add_new;
    }


    /**
    * Get Add New Item label
    */
    private function getAddNewItemLabel(){
       return $this->add_new_item;
    }


    /**
    * Get Edit Item label
    */
    private function getEditItemLabel(){
        return $this->edit_item;
    }


    /**
    * Get New Item Label
    */
    private function getNewItemLabel()
    {
        return $this->new_item;
    }


    /**
    * Get View Item label
    */
    private function getViewItemLabel()
    {
        return $this->view_item;
    }


    /**
    * Get Search Label
    */
    private function getSearchItemsLabel()
    {
        return $this->search_items;
    }


    /**
    * Get Not Found Label
    */
    private function getNotFoundLabel()
    {
        return $this->not_found;
    }


    /**
    * Get Not Found in Trash label
    */
    private function getNotFoundInTrashLabel()
    {
        return $this->not_found_in_trash;
    }


    /**
    * Get Parent Item Colon label
    */
    private function getParentItemColonLabel()
    {
        return $this->parent_item_colon;
    }


    /**
    * Get All Items label
    */
    private function getAllItemsLabel()
    {
        return $this->all_items;
    }


    /**
    * Get Enter Title Here label
    */
    private function getEnterTitleHereLabel()
    {
        return $this->enter_title_here;
    }


    /**
    * Get Public
    */
    private function getPublic()
    {
        return $this->public;
    }


    /**
    * Get Exclude from Search
    */
    private function getExcludeFromSearch()
    {
        return $this->exclude_from_search;
    }


    /**
    * Get Publicly Queriable
    */
    private function getPubliclyQueryable()
    {
        return $this->publicly_queryable;
    }


    /**
    * Get Dashicon
    */
    private function getMenuIcon()
    {
        return $this->menu_icon;
    }


    /**
    * Get Hierarchical
    */
    private function getHierarchical()
    {
        return $this->hierarchical;
    }


    /**
    * Get Post Type Supports
    */
    private function getSupports()
    {
        return $this->supports;
    }


    /**
    * Get Labels
    */
    private function getLabels()
    {
        return $this->labels;
    }





    /**
     * Register
     *
     * Registers the post type
     *
     * @return void
     */
    public function register()
    {
        $this->setLabels()->setArgs();

        register_post_type($this->post_type, $this->args);

        flush_rewrite_rules();
    }

    /**
     * Set Args
     *
     * Puts together the post type array
     *
     * @return obj
     */
    private function setArgs()
    {
        $this->args = [
            'labels' => $this->labels,
            'supports' => $this->supports,
            'public' => $this->public,
            'exclude_from_search' => $this->exclude_from_search,
            'publicly_queryable' => $this->publicly_queryable,
            'menu_icon' => $this->menu_icon,
            'hierarchical' => $this->hierarchical,
            'rewrite' => [
                'slug' => $this->post_type
            ]
        ];

        return $this;
    }
}