(PHP 5)
DOMDocument::loadXML — Load XML from a string
Loads an XML document from a string.
成功时返回 TRUE， 或者在失败时返回 FALSE. If called statically, returns a DOMDocument 或者在失败时返回 FALSE.
If an empty string is passed as the source, a warning will be generated. This warning is not generated by libxml and cannot be handled using libxml's error handling functions.
This method may be called statically, but will issue an E_STRICT error.
Example #1 Creating a Document
<?php
$doc = new DOMDocument();
$doc->loadXML('<root><node/></root>');
echo $doc->saveXML();
?>
Example #2 Static invocation of loadXML
<?php
// Issues an E_STRICT error
$doc = DOMDocument::loadXML('<root><node/></root>');
echo $doc->saveXML();
?>