', esc_html__('Premium', 'insta-gallery')), 'edit_posts', self::$slug, array($this, 'add_panel')); } function add_panel() { global $submenu; include (QLIGG_PLUGIN_DIR . '/includes/view/backend/pages/parts/header.php'); include (QLIGG_PLUGIN_DIR . '/includes/view/backend/pages/premium.php'); } function init() { add_action('admin_menu', array($this, 'add_menu')); add_action('admin_footer', array($this, 'add_css')); } function add_css() { if ($this->is_edit_page() || $this->is_edit_page('new') || $this->is_edit_page('edit')) { if (!class_exists('QLIGG_PRO')) { ?> init(); } return self::$instance; } } QLIGG_Premium_Controller::instance();