(PHP 5, PHP 7)
Representa nodos comentario, caracteres delimitados por <!--
y -->
.
$exclusive
[, bool $with_comments
[, array $xpath
[, array $ns_prefixes
]]]] ) : string$uri
[, bool $exclusive
= FALSE
[, bool $with_comments
= FALSE
[, array $xpath
[, array $ns_prefixes
]]]] ) : int