Print last version number and date of the DayZ Mod, as JSON format.

dayz-version.php

<?php

$htmlPage = 'http://dayzmod.com/?Download'; // page to parse
$versionXPathQuery = '/html/body/section/div[1]/div/div[2]/div[1]/span[2]'; // version XPath query
$dateXPathQuery    = '/html/body/section/div[1]/div/div[2]/div[2]/text()'; // date XPath query
$dateOriginYear = '2013'; // hard coded

try {
    $date    = null;
    $version = null;

    // HTTP request
    $client = new Zend_Http_Client($htmlPage);
    $response = $client->request();

    // Get/query DOM
    $dom = new Zend_Dom_Query($response->getBody());

    // Search version
    $versionResults = $dom->queryXpath($versionXPathQuery);
    $count = count($versionResults);
    if ($count >= 1) {
        foreach ($versionResults as $result) {
            $result = strip_tags(utf8_decode($result->nodeValue));
            $version = $result;
        }
    }

    // Search date
    $dateResults = $dom->queryXpath($dateXPathQuery);
    $count = count($dateResults);
    if ($count >= 1) {
        foreach ($dateResults as $result) {
            $result = strip_tags(utf8_decode($result->nodeValue));
            preg_match('`([[:alpha:]]*[ ]?[[:digit:]]{1,2}).*$`', $result, $matches);
            $date_origin = $matches[1] . ", $dateOriginYear";
            $date = new Zend_Date($date_origin, Zend_Date::DATES, 'en_US');
            $date = $date->get('yyyy-MM-dd');
        }
    }

    // Prepare result array and JSON encode it
    $result = array(
        'date'    => $date,
        'version' => $version,
    );
    echo json_encode($result);
} catch (Zend_Http_Client_Adapter_Exception $e) {
    echo json_encode(array('error' => $e->getMessage()));
} catch (Exception $e) {
    echo json_encode(array('error' => $e->getMessage()));
}