SimpleXMLElement::asXML

(PHP 5 >= 5.0.1)

SimpleXMLElement::asXML — Return a well-formed XML string based on SimpleXML element

Descrição

public mixed SimpleXMLElement::asXML ([ string $filename ] )

The asXML method formats the parent object's data in XML version 1.0.

Parâmetros

filename: If specified, the function writes the data to the file rather than returning it.

Valor Retornado

If the filename isn't specified, this function returns a string on success and FALSE on error. If the parameter is specified, it returns TRUE if the file was written successfully and FALSE otherwise.

Exemplos

Exemplo #1 Get XML

<?php


$string = <<<XML

 <a>


 <b>


  <c>text</c>


  <c>stuff</c>


 </b>


 <d>


  <c>code</c>


 </d>


</a>

 XML;



 $xml = new SimpleXMLElement($string);




echo $xml->asXML();



 ?>

O exemplo acima irá imprimir:

<?xml version="1.0"?>
<a>
 <b>
  <c>text</c>
  <c>stuff</c>
 </b>
 <d>
  <c>code</c>
 </d>
</a>

asXML also works on Xpath results:

Exemplo #2 Using asXML() on SimpleXMLElement::xpath() results

<?php

 // Continued from example XML above.




/* Search for <a><b><c> */

 $result = $xml->xpath('/a/b/c');




while(list( , $node) = each($result)) {


    echo $node->asXML();


}

 ?>

O exemplo acima irá imprimir:

<c>text</c><c>stuff</c>

Veja Também

Basic usage

User Contributed Notes

jcr at di dot uminho dot pt 25-Jan-2011 10:32

Code snippet to load a XML document, increment an attribute and store it again.


My XML looks like:


<?xml version="1.0" encoding="ISO-8859-1"?>


<doctypes counter="16">


    <doctype id="d1">


        <name>Carta</name>


        <acro>CA</acro>


    </doctype>


...


</doctypes>




I want to retrieve the counter attribute, increment it, and store the new document at the end:




<?php


  $document = simplexml_load_file("mydoc.xml");


  $cont = (integer) $document['counter'];


  $document['counter'] = $cont+1;


  $document->asXML("mydoc.xml");

 ?>