cotizacion_brou.php

<?php

ini_set('error_reporting', E_ERROR | E_PARSE);
ini_set('display_errors', 1);

$baseUrl = "http://www.brou.com.uy";

$data = file_get_contents($baseUrl . "/web/guest/institucional/cotizaciones");

$dom = new DOMDocument;
$dom->loadHTML($data);

//discard white space
$dom->preserveWhiteSpace = false;

//the table by its tag name
$tables = $dom->getElementsByTagName('table');

$rows = $tables->item(1)->getElementsByTagName('tr');

$x = array();

foreach ($rows as $row) {
    $cols = $row->getElementsByTagName('td');

    //@ToDo: Missing flag images and ISO currency code

    if (null !== $cols->item(1)->nodeValue) {
        $x[] = array(
            'currency_label' => trim($cols->item(1)->nodeValue),
            'buy' => trim($cols->item(2)->nodeValue),
            'sell' => trim($cols->item(3)->nodeValue)
        );
    }
}

$xjson = json_encode($x);

var_dump($xjson);
exit;