DOMImplementation::createDocument

(PHP 5, PHP 7, PHP 8)

DOMImplementation::createDocument — Creates a DOMDocument object of the specified type with its document element

说明

public DOMImplementation::createDocument(?string $namespace = null, string $qualifiedName = "", ?DOMDocumentType $doctype = null): DOMDocument

Creates a DOMDocument object of the specified type with its document element.

参数

namespace: The namespace URI of the document element to create.
qualifiedName: The qualified name of the document element to create.
doctype: The type of document to create or null.

返回值

A new DOMDocument object. If namespace, qualifiedName, and doctype are null, the returned DOMDocument is empty with no document element.

错误／异常

DOM_WRONG_DOCUMENT_ERR: Raised if doctype has already been used with a different document or was created from a different implementation.
DOM_NAMESPACE_ERR: Raised if there is an error with the namespace, as determined by namespace and qualifiedName.

更新日志

版本	说明
8.4.0	The function now has the tentative return type DOMDocument.
8.0.3	`namespace` is now nullable.
8.0.0	`doctype` is now nullable.
8.0.0	Calling this function statically will now throw an Error. Previously, an `E_DEPRECATED` was raised.

参见

DOMDocument::__construct() - Creates a new DOMDocument object
DOMImplementation::createDocumentType() - Creates an empty DOMDocumentType object

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eboyjr ¶

15 years ago

To add on to the other example, here's how to create an XHTML 1.0 transitional document with head, title, and body elements.<?php$document = DOMImplementation::createDocument(null, 'html',    DOMImplementation::createDocumentType("html",         "-//W3C//DTD XHTML 1.0 Transitional//EN",         "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"));$document->formatOutput = true;$html = $document->documentElement;$head = $document->createElement('head');$title = $document->createElement('title');$text = $document->createTextNode('Title of Page');$body = $document->createElement('body');$title->appendChild($text);$head->appendChild($title);$html->appendChild($head);$html->appendChild($body);echo $document->saveXML();?>This outputs: (http links removed due to spam)<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "doctype.dtd"> <html xmlns="w3org1999xhtml">   <head>     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />     <title>Title of Page</title>   </head>   <body></body> </html> Note the saveXML function. If saveHTML was used instead, you get the output:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "doctype.dtd"> <html> <head><title>Title of Page</title></head> <body></body> </html>

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arturm at union dot com dot pl ¶

19 years ago

To create HTML document with doctype:

<?php
$doctype = DOMImplementation::createDocumentType("html",
                "-//W3C//DTD HTML 4.01//EN",
                "http://www.w3.org/TR/html4/strict.dtd");
$doc = DOMImplementation::createDocument(null, 'html', $doctype);
?>

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-1

sleistico at gmail dot com ¶

7 years ago

I just recently got an error, having to do with deprecation, by using the type of calls in the other example listed here.  What I had to do instead looks like this...$htmldoc = (new DOMImplementation)->createDocument(null, 'html', (new DOMImplementation)->createDocumentType("html"));This creates a document with <!DOCTYPE html> at the top of it.