Woocommerce sort Products > Attributes Table Labels

woocommerce-sort-product-attributes-table.php

<?php 
/**
 * The following snippets allow you to custom-sort the Product Attributes Labels (i.e Attribute Taxonomy) in the table inside Products > Attributes. 
 * WooCommerce allows you to sort the terms of the Attribute but not the order of the Attributes themselves.
 * Details on this thread: https://wordpress.org/support/topic/sorting-of-product-attributes/
 * I have made my own "hack" solution that allows you to do this. You simply add a number followed by an underscore next to the Attribute Label. e.g. 100_My Attribute Name. If you wish to place another value above this you can use any number below 100 e.g. 67_My Other Attribute Name
 *
 * The array of values is sorted on this number and removed from displaying on the front end and when editing a product.
 * Please be aware this is work in progress code and shouldn't be used on a live site without lots of testing.
 */


/**
 * Custom function to iterate over each attribute label and remove the custom sorting number, e.g. '10_'
 *
 * @param array $attributes
 * @return array $attributes Modified array
 */
function webassembler_restore_attribute_taxonomy_labels($attributes) {
	foreach ($attributes as $key => $attribute) {
		$attributes[$key]->attribute_label = preg_replace('/(\d+)_/i', '', $attribute->attribute_label);
	}
	return $attributes;
}


// Sort attributes in Products > Attributes admin page
function sort_attribute_taxonomy_labels($attributes) {
	
	// Sort existing attributes by attribute label (Name field)
	usort($attributes, function ($a, $b) {
		return strnatcasecmp($a->attribute_label, $b->attribute_label);
	});

	// Only Remove the number from the label e.g. `10_` on the end if not in admin
	if (!is_admin()) {
		webassembler_restore_attribute_taxonomy_labels($attributes);
	}
	return $attributes;
}
add_filter( 'woocommerce_attribute_taxonomies', 'sort_attribute_taxonomy_labels' );

	
// Restore the original label when editing a Product's attributes
function restore_product_attribute_labels_edit_product() {
	if (is_admin()) {
		$screen = get_current_screen();
		// Only show on products, but not when editing attributes
		if ($screen->post_type !== 'product' || $screen->id === 'product_page_product_attributes') {
			return;
		}

		// Get all product attributes
		$all_attributes = wc_get_attribute_taxonomies();
		webassembler_restore_attribute_taxonomy_labels($all_attributes);
	}
}

add_action( 'current_screen', 'restore_product_attribute_labels_edit_product' );