PHP Manual
DOM
The DOMDocumentType class

The DOMDocumentType class

(PHP 5, PHP 7, PHP 8)

Introduction

Each DOMDocument has a doctype attribute whose value is either null or a DOMDocumentType object.

Class synopsis

class DOMDocumentType extends DOMNode {

/* Properties */

public readonly string $name;

public readonly DOMNamedNodeMap $entities;

public readonly DOMNamedNodeMap $notations;

public readonly string $publicId;

public readonly string $systemId;

public readonly ?string $internalSubset;

/* Inherited properties */

public readonly string $nodeName;

public ?string $nodeValue;

public readonly int $nodeType;

public readonly ?DOMNode $parentNode;

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 ?DOMDocument $ownerDocument;

public readonly ?string $namespaceURI;

public string $prefix;

public readonly ?string $localName;

public readonly ?string $baseURI;

public string $textContent;

/* Inherited methods */

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::getLineNo(): int

public DOMNode::getNodePath(): ?string

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::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

}

Properties

publicId: The public identifier of the external subset.
systemId: The system identifier of the external subset. This may be an absolute URI or not.
name: The name of DTD; i.e., the name immediately following the DOCTYPE keyword.
entities: A DOMNamedNodeMap containing the general entities, both external and internal, declared in the DTD.
notations: A DOMNamedNodeMap containing the notations declared in the DTD.
internalSubset: The internal subset as a string, or null if there is none. This does not contain the delimiting square brackets.