To add a line series to the chart, you do:
$series = new AreaSeries();
$series->Name = "Expenses";
$series->Appearance->BackgroundColor = "red";
$series->LabelsAppearance->DataFormatString = "$ {0}";
$series->TooltipsAppearance->DataFormatString = "$ {0} millions";
$series->ArrayData(array(30,20,65,40,30));
$chart->PlotArea->AddSeries($series);
<?php
/*
* This file is ready to run as standalone example. However, please do:
* 1. Add tags <html><head><body> to make a complete page
* 2. Change relative path in $KoolControlFolder variable to correctly point to KoolControls folder
*/
$KoolControlsFolder = "../../../../KoolControls";//Relative path to "KoolPHPSuite/KoolControls" folder
require $KoolControlsFolder."/KoolChart/koolchart.php";
$chart = new KoolChart("chart");
$chart->scriptFolder=$KoolControlsFolder."/KoolChart";
$chart->Width = 770;
$chart->Height = 480;
$chart->Title->Text = "Revenues vs Expenses";
$chart->PlotArea->XAxis->Title = "Quarter";
$chart->PlotArea->XAxis->Set(array("Q1","Q2","Q3","Q4","Q5"));
$chart->PlotArea->YAxis->Title = "Finance (millions)";
$chart->PlotArea->YAxis->LabelsAppearance->DataFormatString = "$ {0}";
$series = new AreaSeries();
$series->Name = "Revenues";
$series->Appearance->BackgroundColor = "green";
$series->LabelsAppearance->DataFormatString = "$ {0}";
$series->TooltipsAppearance->DataFormatString = "$ {0} millions";
$series->ArrayData(array(20,30,40,70,50));
$chart->PlotArea->AddSeries($series);
$series = new AreaSeries();
$series->Name = "Expenses";
$series->Appearance->BackgroundColor = "red";
$series->LabelsAppearance->DataFormatString = "$ {0}";
$series->TooltipsAppearance->DataFormatString = "$ {0} millions";
$series->ArrayData(array(30,20,65,40,30));
$chart->PlotArea->AddSeries($series);
?>
<form id="form1" method="post">
<?php echo $chart->Render();?>
<div><i>* <u>Note</u>:</i>Generate your own chart with <a style="color:#B8305E;" target="_blank" href="http://codegen.koolphp.net/generate_koolchart.php">Code Generator</a></div>
</form>
KoolChart - Excellent PHP Chart and GraphFullVersion 2.6.0.2 released on 25/11/2016