PHP-ban vonal diagram készítés, hogyan?

Bocs, lehettem volna konkrétabb...

Mármint mit kell abba a fájlba tennem?

Mert ez a kód, ezt egy oldalon találtam:

<?php // content="text/plain; charset=utf-8"

require_once ('jpgraph/jpgraph.php');

require_once ('jpgraph/jpgraph_line.php');

$datay1 = array(20,15,23,15);

$datay2 = array(12,9,42,8);

$datay3 = array(5,17,32,24);

// Setup the graph

$graph = new Graph(300,250);

$graph->SetScale("textlin");

$theme_class=new UniversalTheme;

$graph->SetTheme($theme_class);

$graph->img->SetAntiAliasing(false);

$graph->title->Set('Filled Y-grid');

$graph->SetBox(false);

$graph->img->SetAntiAliasing();

$graph->yaxis->HideZeroLabel();

$graph->yaxis->HideLine(false);

$graph->yaxis->HideTicks(false,false);

$graph->xgrid->Show();

$graph->xgrid->SetLineStyle("solid");

$graph->xaxis->SetTickLabels(array('A','B','C','D'));

$graph->xgrid->SetColor('#E3E3E3');

// Create the first line

$p1 = new LinePlot($datay1);

$graph->Add($p1);

$p1->SetColor("#6495ED");

$p1->SetLegend('Line 1');

// Create the second line

$p2 = new LinePlot($datay2);

$graph->Add($p2);

$p2->SetColor("#B22222");

$p2->SetLegend('Line 2');

// Create the third line

$p3 = new LinePlot($datay3);

$graph->Add($p3);

$p3->SetColor("#FF1493");

$p3->SetLegend('Line 3');

$graph->legend->SetFrameWeight(1);

// Output line

$graph->Stroke();

?>