EDIT:
fragt sich, was du geändert hast. aber jetzt weißt du, dass es nicht sein kann, wie du schreibst.
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filename:test_root.php
<?php
switch($_GET['cat'])
{
case 'foo':
include('test_code.php');
$instanz = new test;
$instanz->statistic();
break;
}
?>
filename:test_code.php
<?php
class test {
function statistic()
{
switch($_GET['type']) {
case 'week':
include ("_external/jpgraph/jpgraph.php");
include ("_external/jpgraph/jpgraph_bar.php");
// We need some data
$datay=array(+0.13,0.25,+0.21,0.35,0.31,0.04);
$datax=array("Jan","Feb","Mar","Apr","May","June");
// Setup the graph.
$graph = new Graph(500,200,"auto");
$graph->img->SetMargin(60,150,30,50);
$graph->SetScale("textlin");
$graph->SetMarginColor("silver");
$graph->SetShadow();
// Set up the title for the graph
$graph->title->Set("Example negative bars");
$graph->title->SetFont(FF_VERDANA,FS_NORMAL,16);
$graph->title->SetColor("darkred");
// Setup font for axis
$graph->xaxis->SetFont(FF_VERDANA,FS_NORMAL,10);
$graph->yaxis->SetFont(FF_VERDANA,FS_NORMAL,10);
// Show 0 label on Y-axis (default is not to show)
$graph->yscale->ticks->SupressZeroLabel(false);
// Setup X-axis labels
$graph->xaxis->SetTickLabels($datax);
$graph->xaxis->SetLabelAngle(50);
// Set X-axis at the minimum value of Y-axis (default will be at 0)
$graph->xaxis->SetPos("min"); // "min" will position the x-axis at the minimum value of the Y-axis
// Create the bar pot
$bplot = new BarPlot($datay);
$bplot->SetWidth(0.6);
$bplot->SetLegend("Result week","red");
// Setup color for gradient fill style
$bplot->SetFillGradient("navy","steelblue",GRAD_MIDVER);
// Set color for the frame of each bar
$bplot->SetColor("navy");
$graph->Add($bplot);
// Finally send the graph to the browser
$graph->Stroke();
break;
} //-- end switch
} //-- end method
} //-- end class
?>
filename: test_img.php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<table width="545" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="80">dasdasdadad</td>
<td width="30"><img src="test_root.php?cat=foo&type=week"> </td>
</tr>
</table>
</body>
</html>
<?php
show_source(__FILE__);
?>
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