merge-2-attributed

// Function to get product attributes
function get_product_attributes( $product_id ) {
    $product = wc_get_product( $product_id );
    return $product->get_attributes();
}

// Function to merge product attributes
function merge_product_attributes( $product_id_1, $product_id_2 ) {
    $attributes_1 = get_product_attributes( $product_id_1 );
    $attributes_2 = get_product_attributes( $product_id_2 );

    $merged_attributes = [];

    // Helper function to merge options and remove duplicates
    function merge_options( $options1, $options2 ) {
        $merged = array_merge( $options1, $options2 );
        return array_unique( $merged );
    }

    // Helper function to convert term IDs to names
    function convert_term_ids_to_names( $options, $taxonomy ) {
        $names = [];
        foreach ( $options as $option ) {
            if ( term_exists( (int) $option, $taxonomy ) ) {
                $term = get_term_by( 'id', (int) $option, $taxonomy );
                if ( $term ) {
                    $names[] = $term->name;
                }
            } else {
                $names[] = $option;
            }
        }
        return $names;
    }

    // Add attributes from the first product
    foreach ( $attributes_1 as $attribute_1 ) {
        $attribute_name = $attribute_1->get_name();
        $options = $attribute_1->get_options();
        $taxonomy = $attribute_1->is_taxonomy() ? $attribute_name : '';
        if ( $taxonomy ) {
            $options = convert_term_ids_to_names( $options, $taxonomy );
        }
        $merged_attributes[$attribute_name] = $options;
    }

    // Add attributes from the second product
    foreach ( $attributes_2 as $attribute_2 ) {
        $attribute_name = $attribute_2->get_name();
        $options = $attribute_2->get_options();
        $taxonomy = $attribute_2->is_taxonomy() ? $attribute_name : '';
        if ( $taxonomy ) {
            $options = convert_term_ids_to_names( $options, $taxonomy );
        }
        if ( isset( $merged_attributes[$attribute_name] ) ) {
            $merged_attributes[$attribute_name] = merge_options( $merged_attributes[$attribute_name], $options );
        } else {
            $merged_attributes[$attribute_name] = $options;
        }
    }

    return $merged_attributes;
}

// Example usage
$product_id_1 = 1908; // Replace with the actual product ID
$product_id_2 = 2286; // Replace with the actual product ID

$merged_attributes = merge_product_attributes( $product_id_1, $product_id_2 );

// Display the merged attributes
foreach ( $merged_attributes as $attribute_name => $options ) {
    $label = wc_attribute_label( $attribute_name );
    echo 'Attribute Name: ' . $attribute_name . '<br>';
    echo 'Attribute Label: ' . $label . '<br>';
    echo 'Options: ' . implode( ', ', $options ) . '<br>';
}