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DOMDocument->saveXML()

(no version information, might be only in CVS)

DOMDocument->saveXML() --  Dumps the internal XML tree back into a string

说明

class DOMDocument {

string saveXML ( [DOMNode node [, integer options]] )

}

Creates an XML document from the DOM representation. This function is usually called after building a new dom document from scratch as in the example below.

参数

node

Use this parameter to output only a specific node without XML declaration rather than the entire document.

options

Additional Options. Currently only LIBXML_NOEMPTYTAG is supported.

返回值

Returns the XML, or FALSE if an error occurred.

异常

DOM_WRONG_DOCUMENT_ERR

Raised if node is from another document.

更新日志

版本 说明
5.1.0 Added the options parameter

范例

例子 1. Saving a DOM tree into a string

<?php

$doc = new DOMDocument ( '1.0' );
// we want a nice output
$doc -> formatOutput = true ;

$root = $doc -> createElement ( 'book' );
$root = $doc -> appendChild ( $root );

$title = $doc -> createElement ( 'title' );
$title = $root -> appendChild ( $title );

$text = $doc -> createTextNode ( 'This is the title' );
$text = $title -> appendChild ( $text );

echo "Retrieving all the document:\n" ;
echo $doc -> saveXML () . "\n" ;

echo "Retrieving only the title part:\n" ;
echo $doc -> saveXML ( $title );

?>

上例将输出： 

Retrieving all the document:
<?xml version="1.0"?>
<book>
  <title>This is the title</title>
</book>

Retrieving only the title part:
<title>This is the title</title>

参见

DOMDocument->save()
DOMDocument->load()
DOMDocument->loadXML()

后退 起点 前进
DOMDocument->saveHTMLFile() 上一级 DOMDocument->schemaValidate()