The DOMComment class

(PHP 5, PHP 7, PHP 8)


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


class DOMComment extends DOMCharacterData {
/* 继承的属性 */
public string $data;
public readonly int $length;
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;
public string $textContent;
/* 方法 */
public __construct(string $data = "")
/* 继承的方法 */
public DOMCharacterData::after(DOMNode|string ...$nodes): void
public DOMCharacterData::appendData(string $data): true
public DOMCharacterData::before(DOMNode|string ...$nodes): void
public DOMCharacterData::deleteData(int $offset, int $count): bool
public DOMCharacterData::insertData(int $offset, string $data): bool
public DOMCharacterData::replaceData(int $offset, int $count, string $data): bool
public DOMCharacterData::replaceWith(DOMNode|string ...$nodes): void
public DOMCharacterData::substringData(int $offset, int $count): string|false
public DOMNode::appendChild(DOMNode $node): DOMNode|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::cloneNode(bool $deep = false): DOMNode|false
public DOMNode::contains(DOMNode|DOMNameSpaceNode|null $other): bool
public DOMNode::getLineNo(): int
public DOMNode::getNodePath(): ?string
public DOMNode::getRootNode(array $options = null): DOMNode
public DOMNode::hasAttributes(): bool
public DOMNode::hasChildNodes(): bool
public DOMNode::insertBefore(DOMNode $node, ?DOMNode $child = null): DOMNode|false
public DOMNode::isDefaultNamespace(string $namespace): bool
public DOMNode::isEqualNode(?DOMNode $otherNode): bool
public DOMNode::isSameNode(DOMNode $otherNode): bool
public DOMNode::isSupported(string $feature, string $version): bool
public DOMNode::lookupNamespaceURI(?string $prefix): ?string
public DOMNode::lookupPrefix(string $namespace): ?string
public DOMNode::normalize(): void
public DOMNode::removeChild(DOMNode $child): DOMNode|false
public DOMNode::replaceChild(DOMNode $node, DOMNode $child): DOMNode|false


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User Contributed Notes 1 note

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


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

// result: test &#45;&#45;&gt;

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

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