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if ( ! function_exists( 't5_add_page_number' ))
{
    function t5_add_page_number( $s )
    {
        global $page;
        $paged = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : 1;
        ! empty ( $page ) && 1 < $page && $paged = $page;

        // $paged > 1 && $s .= ' | ' . sprintf( __( 'Страница %s' ), $paged );

        // return $s;

        if($paged>1 AND is_tax('product_cat')) {
        $term = $term = get_term( get_queried_object_id(), 'product_cat' );
        return $term->name.' | ' . sprintf( __( 'Страница %s' ), $paged );
        } else {
        	return $s;
        }

    }

    add_filter( 'wpseo_title', 't5_add_page_number', 100, 1 );
}