JezK

Edit File: sidebar.php

<?php defined( 'ABSPATH' ) || die; /** * The sidebar select field. */ class RWMB_Sidebar_Field extends RWMB_Object_Choice_Field { public static function normalize( $field ) { $field = wp_parse_args( $field, [ 'placeholder' => __( 'Select a sidebar', 'meta-box' ), ] ); $field = parent::normalize( $field ); return $field; } public static function query( $meta, array $field ): array { global $wp_registered_sidebars; $options = []; foreach ( $wp_registered_sidebars as $sidebar ) { $options[ $sidebar['id'] ] = [ 'value' => $sidebar['id'], 'label' => $sidebar['name'], ]; } return $options; } /** * Format a single value for the helper functions. Sub-fields should overwrite this method if necessary. * * @param array $field Field parameters. * @param string $value The value. * @param array $args Additional arguments. Rarely used. See specific fields for details. * @param int|null $post_id Post ID. null for current post. Optional. * * @return string */ public static function format_single_value( $field, $value, $args, $post_id ) { if ( ! is_active_sidebar( $value ) ) { return ''; } ob_start(); dynamic_sidebar( $value ); return ob_get_clean(); } }