根据是否有命名或自定义的边框颜色，返回边框颜色的类名。

function get_border_color_classes_for_block_core_search( $attributes ) {
	$border_color_classes    = array();
	$has_custom_border_color = ! empty( $attributes['style']['border']['color'] );
	$has_named_border_color  = ! empty( $attributes['borderColor'] );

	if ( $has_custom_border_color || $has_named_border_color ) {
		$border_color_classes[] = 'has-border-color';
	}

	if ( $has_named_border_color ) {
		$border_color_classes[] = sprintf( 'has-%s-border-color', esc_attr( $attributes['borderColor'] ) );
	}

	return implode( ' ', $border_color_classes );
}