tab_sections as $tab_key => $tab_title ) { $tab_link = add_query_arg( array( 'page' => $this->page_slug, 'section' => $tab_key, ), admin_url( 'themes.php' ) ); $tab_active = ( ( $section && $section === $tab_key ) || ( ! $section && $num === 0 ) ) ? 'active' : ''; echo sprintf( '%s', esc_url( $tab_link ), esc_attr( $tab_active ), esc_html( $tab_title ) ); $num++; } ?>