Import Multiple Attributes from a Single Field [dfrpswc][datafeedr]

mycode_import_size_attribute-1.php

<?php

/**
 * Add the product's size as an attribute.
 *
 * The attribute "Size" with a slug of "size" must already exist here: WordPress Admin Area > Products > Attributes
 *
 * @param array|string $value The current value of the $attribute for this $post.
 * @param string $attribute The slug of the attribute. Examples: pa_color or pa_shoe-size
 * @param array $post An array of post data including ID, post_title, post_status, etc...
 * @param array $product An array of product data returned from the Datafeedr API.
 * @param array $set A post array for this Product Set with an array key of postmeta containing all post meta data.
 * @param string $action The action the Product Set is performing. Value are either "insert" or "update".
 *
 * @return array|string The updated attribute's value.
 */
add_filter( 'dfrpswc_filter_attribute_value', function ( $value, $attribute, $post, $product, $set, $action ) {

	// Change 'size' to the slug of the attribute you want to target.
	$ai = new Dfrpswc_Attribute_Importer( 'size', $value, $attribute, $product );

	// If the "size" field exists for the product, import it.
	$ai->add_field( [ 'size' ] );

	// If a field contains the following character, split the field into multiple values.
	$ai->field_delimiter = ',';

	return $ai->result();

}, 20, 6 );