public function __construct()
 {
     parent::__construct();
     add_action('admin_init', array($this, 'upload_file'));
     add_action('admin_init', array($this, 'edit_download'));
     add_action('admin_init', array($this, 'doifd_download_delete'));
 }
 public function __construct()
 {
     parent::__construct();
     add_action('admin_init', array($this, 'register_doifd_admin_options'));
     add_action('admin_init', array($this, 'doifd_general_settings'));
     add_action('admin_init', array($this, 'doifd_privacy_settings'));
 }
 public static function get_instance()
 {
     if (null == self::$instance) {
         self::$instance = new self();
     }
     return self::$instance;
 }
 public function __construct()
 {
     parent::__construct();
 }
 public function __construct()
 {
     parent::__construct();
     add_action('admin_init', array($this, 'form_field_settings'));
 }
 public function __construct()
 {
     parent::__construct();
     add_action('admin_init', array($this, 'custom_form_css_settings'));
     add_action('admin_init', array($this, 'custom_widget_css_settings'));
 }