get_option( 'show_on_front', 'posts' ), 'page_on_front' => get_option( 'page_on_front', 0 ), 'page_for_posts' => get_option( 'page_for_posts', 0 ), ); $custom_data_xml = ''; foreach ( $options as $key => $value ) { $custom_data_xml .= sprintf( '<%1$s>%2$s', esc_xml( $key ), esc_xml( $value ) ); } $custom_data_xml .= ''; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- Want to put valid xml in RSS head. echo $custom_data_xml; } /** * Display "Patterns" radio in export page. * * @return void */ public function add_patterns_radio() { ?>