PHP: DOMDocument->saveXML()

DOMDocument->saveXML()

(no version information, might be only in CVS)

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

Описание

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.

Список параметров

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.

Возвращаемые значения

Returns the XML, or FALSE if an error occurred.

Исключения

DOM_WRONG_DOCUMENT_ERR: Raised if node is from another document.

Список изменений

Версия	Описание
5.1.0	Added the `options` parameter

Примеры

Пример 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); ?>
Результат выполнения данного примера:
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>

DOMDocument->saveXML()

26-Mar-2006 04:20


I used the function posted by "joe" but the following works to me for get the innerXML


<?php


$itemLeido = $XMLRespuesta->getElementsByTagName("articulos"); 


foreach($itemLeido as $node) {


    echo($node->ownerDocument->saveXML($node));


}


?>

doc dot php dot net at webdevelopers dot cz
29-Sep-2005 03:25


saveXML() does not produce valid XML in case that the DOM was build using loadHTML() method.



You can experience double attributes (for example double @xmlns attribute on <html> element) or for example two dashes inside the XML comment (<script><!-- for(a=10; a < 10; a--)...; --></script>).



Don't be confused if the result of saveXML() cannot be loaded again with loadXML().



Elixon

mswiercz at mwerk dot com
10-Sep-2004 03:43


Quick tip to minimize memory when generating documents with DOM.



Rather than using

   $xmlStr = DOMDocument->saveXML();

   echo $xmlStr;



to dump a large DOM to the output buffer, use a PHP output stream, as in



   DOMDocument->save('php://output');



A lot of memory will be saved when generating large DOMs.

padys at tlen dot pl
05-Aug-2004 07:36


When you save whole document:

DOMDocument->saveXML() produces string in encoding defined in property DOMDocument->encoding.



When you save only one node:

DOMDocument->saveXML(DOMNode) produces always string in UTF-8.