1. Hiển thị shortcode to front-end (ok)

C:\xampp\htdocs\wptest\wp-content\plugins\pointfindercoreelements\pointfindercoreelements.php

<?php
/**
 * Plugin Name:       PointFinder Core Elements
 * Plugin URI:        https://themeforest.net/user/webbu/portfolio
 * Description:       PointFinder theme core elements plugin.
 * Version:           1.1.8
 * Author:            Webbu
 * Author URI:        https://themeforest.net/user/webbu
 * License:           Themeforest Split License
 * License URI:       https://themeforest.net/licenses/terms/regular
 * Text Domain:       pointfindercoreelements
 * Domain Path:       /languages
 */
if (!defined('WPINC')) {
  die;
}
define('PFCOREPLUGIN_NAME_VERSION', '1.1.8');
define('PFCOREELEMENTSDIR', plugin_dir_path(__FILE__));
define('PFCOREELEMENTSURL', plugin_dir_url(__FILE__));
define('PFCOREELEMENTSURLADMIN', plugin_dir_url(__FILE__) . 'admin/');
define('PFCOREELEMENTSURLPUBLIC', plugin_dir_url(__FILE__) . 'public/');
define('PFCOREELEMENTSURLINC', plugin_dir_url(__FILE__) . 'includes/');
require PFCOREELEMENTSDIR . 'includes/traits/options.php';
require PFCOREELEMENTSDIR . 'includes/class-pointfindercoreelements.php';
// $plugin = new Pointfindercoreelements();
// $plugin->run();

C:\xampp\htdocs\wptest\wp-content\plugins\pointfindercoreelements\includes\class-pointfindercoreelements.php

<?php
class Pointfindercoreelements {
  protected $loader;
  protected $plugin_name;
  protected $version;
  private $post_type_name;
  private $agent_post_type_name;
  public function __construct() {
    $this->version              = '1.0.0';
    $this->plugin_name          = 'pointfindercoreelements';
    $this->post_type_name       = 'pfitemfinder';
    $this->agent_post_type_name = 'agents';
    $this->load_dependencies();
  }
  private function load_dependencies() {
    require_once PFCOREELEMENTSDIR . 'admin/fields/pfgetsearchfields.php';
    require_once PFCOREELEMENTSDIR . 'includes/customshortcodes/pf-search.php';
    // require_once PFCOREELEMENTSDIR . 'includes/class-pointfindercoreelements-loader.php';
    // $this->loader = new Pointfindercoreelements_Loader();
  }
  // public function run() {
  //   $this->loader->run();
  // }
}
?>

C:\xampp\htdocs\wptest\wp-content\plugins\pointfindercoreelements\includes\class-pointfindercoreelements-loader.php

<?php
class Pointfindercoreelements_Loader {
  protected $actions;
  public function __construct() {
    $this->actions = array();
  }
  public function add_action($hook, $component, $callback, $priority = 10, $accepted_args = 1) {
    $this->actions = $this->add($this->actions, $hook, $component, $callback, $priority, $accepted_args);
  }
  private function add($hooks, $hook, $component, $callback, $priority, $accepted_args) {
    $hooks[] = array(
      'hook'          => $hook,
      'component'     => $component,
      'callback'      => $callback,
      'priority'      => $priority,
      'accepted_args' => $accepted_args,
    );
    return $hooks;
  }
  public function run() {
    foreach ($this->actions as $hook) {
      add_action($hook['hook'], array($hook['component'], $hook['callback']), $hook['priority'], $hook['accepted_args']);
    }
  }
}

C:\xampp\htdocs\wptest\wp-content\plugins\pointfindercoreelements\includes\traits\options.php

<?php  
	if (!trait_exists('PointFinderOptionFunctions')) {
		trait PointFinderOptionFunctions {
			
		}
	}
?>

C:\xampp\htdocs\wptest\wp-content\plugins\pointfindercoreelements\includes\customshortcodes\pf-search.php

<?php
if (!defined('ABSPATH')) {
  die('-1');
}
class PointFinderSearchShortcode extends WPBakeryShortCode {
	function __construct() {
    add_shortcode( 'pf_searchw', array( $this, 'pointfinder_single_pf_searchw_module_html' ) );
  }
  public function pointfinder_single_pf_searchw_module_html( $atts ) {
  	return  'Lorem ipsum dolor sit amet, consectetur adipisicing elit. Perspiciatis, eum? Atque, animi? Officia earum pariatur iure non tempore porro in voluptatem, hic vel praesentium, impedit obcaecati minima saepe aliquid quos. Fuga voluptatem delectus laudantium facilis dicta, velit, natus totam a, maiores sint mollitia optio porro unde obcaecati iure sunt magnam?';
  }
}
new PointFinderSearchShortcode();

C:\xampp\htdocs\wptest\wp-content\plugins\pointfindercoreelements\admin\fields\pfgetsearchfields.php

<?php  
	if ( ! class_exists( 'PF_SF_Val' ) ){
		class PF_SF_Val {
			use PointFinderOptionFunctions;
		}
	}
?>