(PHP 5, PHP 7)
Represents comment nodes, characters delimited by <!--
and -->
.
$exclusive
[, bool $with_comments
[, array $xpath
[, array $ns_prefixes
]]]] ) : string$uri
[, bool $exclusive
= FALSE
[, bool $with_comments
= FALSE
[, array $xpath
[, array $ns_prefixes
]]]] ) : int