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

ChartTypes - PHP ScatterLine Chart

* Note:Generate your own chart with Code Generator

Description & Sample code

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

    $series = new ScatterLineSeries("1.6C");
    $series->AddItem(new ScatterItem(10,40));
    $series->AddItem(new ScatterItem(17,50));
    $series->AddItem(new ScatterItem(18,70));
    $chart->PlotArea->AddSeries($series);