$chart = new Highchart();

$chart->chart->renderTo = 'container';
$chart->title->text = 'Daily visits at www.highcharts.com';
$chart->subtitle->text = 'Source: Google Analytics';

$chart->xAxis->type = 'datetime';
$chart->xAxis->tickInterval = 7 * 24 * 3600 * 1000;
$chart->xAxis->tickWidth = 0;
$chart->xAxis->gridLineWidth = 1;
$chart->xAxis->labels->align = 'left';
$chart->xAxis->labels->x = 3;
$chart->xAxis->labels->y = - 3;

$leftYaxis = new HighchartOption();
$leftYaxis->title->text = null;
$leftYaxis->labels->align = 'left';
$leftYaxis->labels->x = 3;
$leftYaxis->labels->y = 16;
$leftYaxis->labels->formatter = new HighchartJsExpr("function() { return Highcharts.numberFormat(this.value, 0);}");
$leftYaxis->showFirstLabel = false;
$chart->yAxis[] = $leftYaxis;

$rightYaxis = new HighchartOption();
$rightYaxis->linkedTo = 0;
$rightYaxis->gridLineWidth = 0;
$rightYaxis->opposite = true;
$rightYaxis->title->text = null;
$rightYaxis->labels->align = 'right';
$rightYaxis->labels->x = - 3;
$rightYaxis->labels->y = 16;
$rightYaxis->labels->formatter = new HighchartJsExpr("function() { return Highcharts.numberFormat(this.value, 0);}");
$rightYaxis->showFirstLabel = false;
$chart->yAxis[] = $rightYaxis;

// The yAxis can also be an array of non-associative arrays

/*
 * $chart->yAxis = array(array('title' => array('text' => null), 'labels' =>
 * array('align' => 'left', 'x' => 3, 'y' => 16, 'formatter' => new
 * HighchartJsExpr("function() { return Highcharts.numberFormat(this.value,
 * 0);}")), 'showFirstLabel' => false), array('linkedTo' => 0, 'gridLineWidth'
 * => 0, 'opposite' => true, 'title' => array('text' => null), 'labels' =>
 * array('align' => 'right', 'x' => -3, 'y' => 16, 'formatter' => new
 * HighchartJsExpr("function() { return Highcharts.numberFormat(this.value,
 * 0);}")) ));
 */

$chart->legend = array(
    'align' => 'left',
    'verticalAlign' => 'top',
    'y' => 20,
    'floating' => true,
    'borderWidth' => 0
);

$chart->tooltip = array(
    'shared' => true,
    'crosshairs' => true
);

$clickFunction = new HighchartJsExpr(
    "function() {
        hs.htmlExpand(null, {
            pageOrigin: {
                x: this.pageX,
                y: this.pageY
            },
            headingText: this.series.name,
            maincontentText: Highcharts.dateFormat('%A, %b %e, %Y', this.x) +':<br/> '+
                this.y +' visits',
            width: 200
        });
    }"
);
$chart->plotOptions->series->cursor = 'pointer';
$chart->plotOptions->series->point->events->click = $clickFunction;
$chart->plotOptions->series->marker->lineWidth = 1;

$chart->series[] = array(
    'name' => 'All visits',
    'lineWidth' => 4,
    'marker' => array(
        'radius' => 4
    )
);
$chart->series[]->name = 'New visitors';