Php/docs/domdocument.savexml

• PHP Manual
• DOMDocument
• Dumps the internal XML tree back into a string

DOMDocument::saveXML

(PHP 5, PHP 7)

DOMDocument::saveXML — Dumps the internal XML tree back into a string

说明

public DOMDocument::saveXML ([ DOMNode $node [, int $options = 0 ]] ) : string

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

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.

返回值

Returns the XML, or false if an error occurred.

错误／异常

DOM_WRONG_DOCUMENT_ERR

Raised if node is from another document.

范例

Example #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 "Saving all the document:\n";echo $doc->saveXML() . "\n";echo "Saving only the title part:\n";echo $doc->saveXML($title);?>

以上例程会输出：

Saving all the document:
<?xml version="1.0"?>
<book>
  <title>This is the title</title>
</book>

Saving only the title part:
<title>This is the title</title>

参见

• DOMDocument::save() - Dumps the internal XML tree back into a file
• DOMDocument::load() - Load XML from a file
• DOMDocument::loadXML() - Load XML from a string