$chart = new Highchart(Highchart::HIGHSTOCK);

$chart->chart->renderTo = "container";
$chart->rangeSelector->selected = 1;
$chart->title->text = "USD to EUR exchange rate";
$chart->yAxis->title->text = "Exchange rate";

$chart->yAxis->plotBands[] = array(
    'from' => 0.6738,
    'to' => 0.7419,
    'color' => "rgba(68, 170, 213, 0.2)",
    'label' => array(
        'text' => "Last quarter's value range"
    )
);

$chart->series[] = array(
    'name' => "USD to EUR",
    'data' => new HighchartJsExpr("data"),
    'tooltip' => array(
        'valueDecimals' => 4
    )
);