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<?php
namespace Sabre\Xml\Element;
use Sabre\Xml;
use Sabre\Xml\Deserializer;
/**
* 'KeyValue' parses out all child elements from a single node, and outputs a
* key=>value struct.
*
* Attributes will be removed, and duplicate child elements are discarded.
* Complex values within the elements will be parsed by the 'standard' parser.
*
* For example, KeyValue will parse:
*
* <?xml version="1.0"?>
* <s:root xmlns:s="http://sabredav.org/ns">
* <s:elem1>value1</s:elem1>
* <s:elem2>value2</s:elem2>
* <s:elem3 />
* </s:root>
*
* Into:
*
* [
* "{http://sabredav.org/ns}elem1" => "value1",
* "{http://sabredav.org/ns}elem2" => "value2",
* "{http://sabredav.org/ns}elem3" => null,
* ];
*
* @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class KeyValue implements Xml\Element {
/**
* Value to serialize
*
* @var array
*/
protected $value;
/**
* Constructor
*
* @param array $value
*/
function __construct(array $value = []) {
$this->value = $value;
}
/**
* The xmlSerialize metod is called during xml writing.
*
* Use the $writer argument to write its own xml serialization.
*
* An important note: do _not_ create a parent element. Any element
* implementing XmlSerializble should only ever write what's considered
* its 'inner xml'.
*
* The parent of the current element is responsible for writing a
* containing element.
*
* This allows serializers to be re-used for different element names.
*
* If you are opening new elements, you must also close them again.
*
* @param Writer $writer
* @return void
*/
function xmlSerialize(Xml\Writer $writer) {
$writer->write($this->value);
}
/**
* The deserialize method is called during xml parsing.
*
* This method is called staticly, this is because in theory this method
* may be used as a type of constructor, or factory method.
*
* Often you want to return an instance of the current class, but you are
* free to return other data as well.
*
* Important note 2: You are responsible for advancing the reader to the
* next element. Not doing anything will result in a never-ending loop.
*
* If you just want to skip parsing for this element altogether, you can
* just call $reader->next();
*
* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
* the next element.
*
* @param Xml\Reader $reader
* @return mixed
*/
static function xmlDeserialize(Xml\Reader $reader) {
return Deserializer\keyValue($reader);
}
}
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