您的位置:寻梦网首页编程乐园PHP 编程PHP5中文手册
PHP5中文手册

DOMImplementation->createDocumentType()

(No version information available, might be only in CVS)

DOMImplementation->createDocumentType() — Creates an empty DOMDocumentType object

说明

DOMImplementation
DOMDocumentType createDocumentType ([ string $qualifiedName [, string $publicId [, string $systemId ]]] )

Creates an empty DOMDocumentType object. Entity declarations and notations are not made available. Entity reference expansions and default attribute additions do not occur.

参数

qualifiedName

The qualified name of the document type to create.

publicId

The external subset public identifier.

systemId

The external subset system identifier.

返回值

A new DOMDocumentType node with its ownerDocument set to NULL.

范例

Example#1 Creating a document with an attached DTD

<?php

// Creates an instance of the DOMImplementation class
$imp = new DOMImplementation;

// Creates a DOMDocumentType instance
$dtd $imp->createDocumentType('graph''''graph.dtd');

// Creates a DOMDocument instance
$dom $imp->createDocument(""""$dtd);

// Set other properties
$dom->encoding 'UTF-8';
$dom->standalone false;

// Create an empty element
$element $dom->createElement('graph');

// Append the element
$dom->appendChild($element);

// Retrieve and print the document
echo $dom->saveXML();

?>

上例将输出:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE graph SYSTEM "graph.dtd">
<graph/>

错误/异常

DOM_NAMESPACE_ERR

Raised if there is an error with the namespace, as determined by qualifiedName .