Add some attribute values to WooCommerce variable product title from chosen variation

Question

I'm looking for some help getting the WooCommerce variable product title to change based on variations. In this specific case I would like the title to change when a color is selected, like "Productname Black".

Is there any easy snippet to get this to work?

Answer 1

UPDATE 04-2021 - Successfully tested on WooCommerce 5.1+ (handle custom product attributes)

The following code, will add to variable product title the value(s) of the chosen variation from specific defined product attribute(s) (or all of them optionally too):

The code:

// Defining product Attributes term names to be displayed on variable product title
add_filter( 'woocommerce_available_variation', 'filter_available_variation_attributes', 10, 3 );
function filter_available_variation_attributes( $data, $product, $variation ){
    // Here define the product attribute(s) slug(s) which values will be added to the product title
    // Or replace the array with 'all' string to display all attribute values
    $attribute_names = array('Custom', 'Color');

    foreach( $data['attributes'] as $attribute => $value ) {
        $attribute      = str_replace('attribute_', '', $attribute);
        $attribute_name = wc_attribute_label($attribute, $variation);

        if ( ( is_array($attribute_names) && in_array($attribute_name, $attribute_names) ) || $attribute_names === 'all' ) {
            $value = taxonomy_exists($attribute) ? get_term_by( 'slug', $value, $attribute )->name : $value;

            $data['for_title'][$attribute_name] = $value;
        }
    }
    return $data;
}

// Display to variable product title, defined product Attributes term names
add_action( 'woocommerce_after_variations_form', 'add_variation_attribute_on_product_title' );
function add_variation_attribute_on_product_title(){
    // Here define the separator string
    $separator = ' - ';
    ?>
    <script type="text/javascript">
    (function($){
        var name = '<?php global $product; echo $product->get_name(); ?>';

        $('form.cart').on('show_variation', function(event, data) {
            var text = '';

            $.each( data.for_title, function( key, value ) {
                text += '<?php echo $separator; ?>' + value;
            });

            $('.product_title').text( name + text );

        }).on('hide_variation', function(event, data) {
            $('.product_title').text( name );
        });
    })(jQuery);
    </script>
    <?php
}

Displaying all attributes

You can display all variations attributes values for the chosen variation by defining the variable $attribute_names to "all" so like:

$attribute_names = "all";

Code goes in functions.php file of your active child theme (or theme) or also in any plugin file.

Tested and works… you will get something like: