DOMImplementation->createDocumentType()
(no version information, might be only in CVS)
DOMImplementation->createDocumentType() --
Creates an empty DOMDocumentType object
说明
class
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
例子 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/>
|
|
异常
-
DOM_NAMESPACE_ERR
-
Raised if there is an error with the namespace, as determined by
qualifiedName
.