The XML parser converts the text of an XML document into UTF-8, even if you have set the character encoding of the XML, for example as a second parameter of the DOMDocument constructor. After parsing the XML with the load() command all its texts have been converted to UTF-8.
In case you append text nodes with special characters (e. g. Umlaut) to your XML document you should therefore use utf8_encode() with your text to convert it into UTF-8 before you append the text to the document. Otherwise you will get an error message like "output conversion failed due to conv error" at the save() command. See example below:
<?php
// Text to insert into XML below
$txt = "a text with special characters like '', '', '' etc.";
// Create Instance of DOMDocument
$dom = new DOMDocument;
// Load XML file
// Was created before with DOMDocument('1.0', 'iso-8859-1')
$dom = $dom->load("file.xml");
// Find the parent node
$parent = $dom->documentElement;
// Create Instance of DomXPath
$xpath = new DomXPath($dom);
// new node will be inserted before this node
$next = $xpath->query("//parentnode/childnode");
// Create the new element
$new_elem = $dom->createElement('new_elem');
// Insert the new element
$parent->insertBefore($new_elem, $next->item(0));
// DOMXML = utf-8! (will be converted to iso-8859-1 only at 'save()')
// prevents error message "output conversion failed due to conv error" at 'save()'
$txt = utf8_encode($txt);
// Create new text node with utf-8 encoded string
$nodetext = $dom->createTextNode("$txt");
// Append text node to new element
$nodetext = $new_elem->appendChild($nodetext);
// save
$dom->save("file.xml");
?>
Hope this helps someone.
siegparr
DOMDocument->save()
(no version information, might be only in CVS)
DOMDocument->save() -- Dumps the internal XML tree back into a file说明
class DOMDocument {mixed save ( string filename [, 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
- filename
The path to the saved XML document.
- options
Additional Options. Currently only LIBXML_NOEMPTYTAG is supported.
范例
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User Contributed Notes
siegparr at NOSPAM dot web dot de
07-Jul-2006 11:00
07-Jul-2006 11:00
JimmyNighthawk
29-Oct-2005 05:52
29-Oct-2005 05:52
+++ EMERGENCY NOT +++
When the HTML-Specification which is implemented in ->saveHTML() is implemented in ->save() you are not able to store XML-Tags which have no End-Tags in HTML (e. g. <link>- and <meta>-Tags).
Same in other words:
When the HTML-Specification which is implemented in ->saveHTML() is accidently implemented in ->save() the VALUE and END-TAG of nodes will be removed/deleted, when there is no VALUE and END-TAG allowed in HTML.
If this happens note this to your Hoster. It should be corrected immediately to perfom full benefit of XML, and perhaps your XML-database.
Let us just say about dealed fairly: "shit happens"