php报表类库jpgraph柱状图生成实例

2. /**
3. * JpGraph类生成柱状图
4. * by bbs.it-home.org
5. */
6. $datay=array(); //纵坐标数据
7. $datax=array(); //横坐标数据
8. foreach ($usernums as $key => $value){
9. $datay[] = $value;
10. $datax[] = $userids[$key];
11. }
12. require_once (‘jpgraph-3.0.7/jpgraph/jpgraph.php');
13. require_once (‘jpgraph-3.0.7/jpgraph/jpgraph_bar.php');
14. // Create the graph. These two calls are always required
15. $graph = new Graph(800,600); //图像高宽
16. $graph->SetScale(“textlin”);
17. $graph->xaxis->SetTickLabels($datax);
18. $graph->xaxis->SetFont(FF_VERDANA,FS_NORMAL,10);
19. $graph->xaxis->SetLabelAngle(30);
20. $graph->yaxis->scale->SetGrace(20);
21. $graph->xaxis->scale->SetGrace(20);
22. // Add a drop shadow
23. $graph->SetShadow();
24. // Adjust the margin a bit to make more room for titles
25. $graph->img->SetMargin(40,30,20,40);
26. // Create a bar pot
27. $bplot = new BarPlot($datay);
28. // Adjust fill color
29. $bplot->SetFillColor(‘orange');
30. $bplot->value->Show();
31. $bplot->value->SetFont(FF_ARIAL,FS_BOLD,10);
32. $bplot->value->SetAngle(45);
33. $bplot->value->SetFormat(‘%d');
34. $graph->Add($bplot);
35. // Setup the titles
36. $graph->title->Set(iconv(“UTF-8″, “gb2312″,”用户消费报表图”));
37. $graph->xaxis->title->Set(iconv(“UTF-8″, “gb2312″,”用户姓名”));
38. $graph->yaxis->title->Set(iconv(“UTF-8″, “gb2312″,”用户订单数量”));
39. $graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
40. $graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
41. $graph->title->SetFont(FF_SIMSUN,FS_BOLD);
42. // Display the graph
43. $graph->Stroke();
44. ?>

效果如下图: