add_settings_section(); // validate settings on save add_filter( 'isc_settings_on_save_after_validation', [ $this, 'validate_settings' ], 10, 2 ); } /** * Add settings section */ public function add_settings_section() { } /** * Validate settings * * @param array $output output data. * @param array $input input data. * * @return array $output */ public function validate_settings( array $output, array $input ): array { return $output; } /** * Get the ISC options */ protected function get_options() { return Plugin::get_options(); } }