en un grafico libchart???
Código PHP:
$serie1->addPoint(new Point($fechini,$finaldat));
$dataSet = new XYSeriesDataSet();
$dataSet->addSerie("aaaa", $serie1);
$chart->setDataSet($dataSet);
$chart->setTitle("INFORME SPREAD");
$chart->render("generated/demo3.png");
saludos.