GetLastModified.php

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<?php
 
namespace Sabre\DAV\Xml\Property;
 
use DateTime;
use DateTimeZone;
use Sabre\HTTP;
use Sabre\Xml\Element;
use Sabre\Xml\Reader;
use Sabre\Xml\Writer;
 
class GetLastModified implements Element {
 
    public $time;
 
    function __construct($time) {
 
        if ($time instanceof DateTime) {
            $this->time = clone $time;
        } else {
            $this->time = new DateTime('@' . $time);
        }
 
        // Setting timezone to UTC
        $this->time->setTimezone(new DateTimeZone('UTC'));
 
    }
 
    function getTime() {
 
        return $this->time;
 
    }
 
    function xmlSerialize(Writer $writer) {
 
        $writer->write(
            HTTP\Util::toHTTPDate($this->time)
        );
 
    }
 
    static function xmlDeserialize(Reader $reader) {
 
        return
            new self(new DateTime($reader->parseInnerTree()));
 
    }
}