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# SimpleXMLElement->asXML

(no version information, might be only in CVS)

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

## 说明

mixed SimpleXMLElement->asXML ( [string filename] )

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

## 参数

filename

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

## 返回值

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.

## 范例

例子 1. Get XML

`<?php $string = <<<XML <a> <b> <c>text</c> <c>stuff</c> </b> <d> <c>code</c> </d> </a> XML; $xml = simplexml_load_string($string); echo $xml->asXML(); // <?xml ... <a><b><c>text</c><c>stuff</c> ... ?>`

asXML also works on Xpath results:

例子 2. Using asXML() on 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(); // <c>text</c> and <c>stuff</c> } ?>`

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SimpleXML functions | 上一级 | SimpleXMLElement->attributes