public static function admin_init() { $dir = dirname(__FILE__) . '/'; require_once $dir . 'class-tooltip.php'; require_once $dir . 'class-admin.php'; require_once $dir . 'class-credits-admin.php'; require_once $dir . 'class-trademarks-admin.php'; Footer_Putter_Admin::init(); Footer_Credits_Admin::init(); Footer_Trademarks_Admin::init(); add_filter('pre_option_link_manager_enabled', '__return_true'); add_filter('plugin_action_links', array(__CLASS__, 'plugin_action_links'), 10, 2); }