KoolChart - Excellent PHP Chart and GraphKoolChart - Excellent PHP Chart and GraphFullVersion 2.6.0.3 released on 05/19/2017

ChartTypes - PHP Scatter Chart

* Note:Generate your own chart with Code Generator

Description & Sample code

Description Example.php Documentation 
To add a line series to the chart, you do:

    $series = new ScatterSeries();
    $series->Name = "Product F";
    $series->LabelsAppearance->DataFormatString = "{1} / $ {0}";
    $series->TooltipsAppearance->DataFormatString = "{1} / $ {0}";
    $series->AddItem(new ScatterItem(24,20));
    $chart->PlotArea->AddSeries($series);