The DOMComment class

(PHP 5, PHP 7, PHP 8)

Introduction

Represents comment nodes, characters delimited by <!-- and -->.

Class synopsis

class DOMComment extends DOMCharacterData {
/* Inherited constants */
/* Inherited properties */
public string $data ;
public readonly int $length ;
public readonly ?DOMElement $nextElementSibling ;
public readonly string $nodeName ;
public ?string $nodeValue ;
public readonly int $nodeType ;
public readonly ?DOMNode $parentNode ;
public readonly ?DOMElement $parentElement ;
public readonly DOMNodeList $childNodes ;
public readonly ?DOMNode $firstChild ;
public readonly ?DOMNode $lastChild ;
public readonly ?DOMNode $previousSibling ;
public readonly ?DOMNode $nextSibling ;
public readonly ?DOMNamedNodeMap $attributes ;
public readonly bool $isConnected ;
public readonly ?DOMDocument $ownerDocument ;
public readonly ?string $namespaceURI ;
public string $prefix ;
public readonly ?string $localName ;
public readonly ?string $baseURI ;
/* Methods */
public __construct (string $data = "")
/* Inherited methods */
public DOMCharacterData::deleteData (int $offset, int $count): bool
public DOMCharacterData::insertData (int $offset, string $data): bool
public DOMCharacterData::replaceData (int $offset, int $count, string $data): bool
public DOMCharacterData::substringData (int $offset, int $count): string |false
public DOMNode::C14N (
bool $exclusive = false ,
bool $withComments = false ,
? array $xpath = null ,
? array $nsPrefixes = null
): string |false
public DOMNode::C14NFile (
string $uri,
bool $exclusive = false ,
bool $withComments = false ,
? array $xpath = null ,
? array $nsPrefixes = null
): int |false
public DOMNode::getRootNode (? array $options = null ): DOMNode
public DOMNode::insertBefore (DOMNode $node, ? DOMNode $child = null ): DOMNode |false
public DOMNode::isEqualNode (? DOMNode $otherNode): bool
public DOMNode::isSameNode (DOMNode $otherNode): bool
public DOMNode::isSupported (string $feature, string $version): bool
public DOMNode::lookupPrefix (string $namespace): ? string
}

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User Contributed Notes 1 note

up
-1
npelov at croler dot net
3 years ago
Note that textContent property of a comment is not entity decoded, it is decoded in DOMElement::textContent :

<?php

$xml
= new DOMDocument();
$xml->loadXML('<?xml version="1.0" encoding="utf-8"?>
<configuration version="2">
<!-- test &#45;&#45;&gt; -->
test &#45;&#45;&gt;
</configuration>'
);
$xpath = new DOMXPath($xml);
$comments = $xpath->query('//comment()');
$elements = $xpath->query('//configuration');

echo
$comments[0]->textContent;
// result: test &#45;&#45;&gt;

echo $elements[0]->textContent;
// result: test -->

?>
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