FacetWP - index variation attribute with "Any" select

functions.php

<?php

add_filter( 'facetwp_indexer_row_data', function( $rows, $params ) {
    $defaults = $params['defaults'];
    $post_id = (int) $defaults['post_id'];

    if ( 0 === strpos( $defaults['facet_source'], 'cf/attribute_pa_' ) ) {
        if ( 'product_variation' == get_post_type( $post_id ) ) {
            $parent_id = wp_get_post_parent_id( $post_id );
            $tax = str_replace( 'cf/attribute_', '', $defaults['facet_source'] );
            $terms = get_the_terms( $parent_id, $tax );

            if ( ! is_wp_error( $terms ) && ! empty( $terms ) ) {
                foreach ( $terms as $term ) {
                    $temp = $defaults;
                    $temp['term_id'] = $term->term_id;
                    $temp['facet_value'] = $term->slug;
                    $temp['facet_display_value'] = $term->name;
                    $temp['variation_id'] = $post_id;
                    $temp['post_id'] = $parent_id;
                    $rows[] = $temp;
                }
            }
        }
    }

    return $rows;
}, 999, 2 );

Line 8 : get_post_tyoe should be get_post_type

Thanks, fixed!