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<?php

function getDowJones()
{
    $rawData = file_get_contents("http://chartapi.finance.yahoo.com/instrument/1.0/%5Edji/chartdata;type=quote;range=1d/csv/");
    $data = explode("\n", trim($rawData));
    $csvData = $data[count($data)-1];
    $arrayDJI = explode(",", $csvData);

    return number_format((float)$arrayDJI[4], 2, ',', '');
}