object terms

// Add Shortcode
function custom_php_shortcode() {

	$post_terms = wp_get_object_terms( $post->ID, 'post_tag' );
	$output = '<ul>';
	if ( ! empty( $post_terms ) ) {
		if ( ! is_wp_error( $post_terms ) ) {
			
				foreach( $post_terms as $term ) {
					$output .= '<li><a href="' . get_term_link( $term->slug, 'product' ) . '">' . esc_html( $term->name ) . '</a></li>'; 
				}
			
		}
	}
	$output .= '</ul>';
	
	return $output;

}
add_shortcode( 'customphp', 'custom_php_shortcode' );