update : 2015.11.03
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Dumps the internal XML tree back into a string
DOMDocument
PHP Manual

DOMDocument::saveXML

(PHP 5, PHP 7)

DOMDocument::saveXML — Dumps the internal XML tree back into a string

설명

public string DOMDocument::saveXML ([ DOMNode $node [, int $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.

인수

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.

반환값

Returns the XML, or FALSE if an error occurred.

오류/예외

DOM_WRONG_DOCUMENT_ERR

Raised if node is from another document.

변경점

버전 설명
5.1.0 Added the options parameter

예제

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

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

?>

위 예제의 출력:

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

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

참고

DOMDocument
PHP Manual