新手初識jpgraph肯定會遇到各種各樣的問題,比如亂碼什么的,本案例是jpgraph3.0.7制作,也經過本人的多次實驗，解決亂碼問題 

復制代碼代碼如下:

<?php 
$datay=array(); //縱坐標數據 
$datax=array(); //橫坐標數據 
foreach ($usernums as $key => $value){ 
$datay[] = $value; 
$datax[] = $userids[$key]; 
} 
require_once (‘jpgraph-3.0.7/jpgraph/jpgraph.php'); 
require_once (‘jpgraph-3.0.7/jpgraph/jpgraph_bar.php'); 
// Create the graph. These two calls are always required 
$graph = new Graph(800,600); //圖像高寬 
$graph->SetScale(“textlin”); 
$graph->xaxis->SetTickLabels($datax); 
$graph->xaxis->SetFont(FF_VERDANA,FS_NORMAL,10); 
$graph->xaxis->SetLabelAngle(30); 
$graph->yaxis->scale->SetGrace(20); 
$graph->xaxis->scale->SetGrace(20); 
// Add a drop shadow 
$graph->SetShadow(); 
// Adjust the margin a bit to make more room for titles 
$graph->img->SetMargin(40,30,20,40); 
// Create a bar pot 
$bplot = new BarPlot($datay); 
// Adjust fill color 
$bplot->SetFillColor(‘orange'); 
$bplot->value->Show(); 
$bplot->value->SetFont(FF_ARIAL,FS_BOLD,10); 
$bplot->value->SetAngle(45); 
$bplot->value->SetFormat(‘%d'); 
$graph->Add($bplot); 
// Setup the titles 
$graph->title->Set(iconv(“UTF-8″, “gb2312″,”用戶消費報表圖”)); 
$graph->xaxis->title->Set(iconv(“UTF-8″, “gb2312″,”用戶姓名”)); 
$graph->yaxis->title->Set(iconv(“UTF-8″, “gb2312″,”用戶訂單數量”)); 
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD); 
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD); 
$graph->title->SetFont(FF_SIMSUN,FS_BOLD); 
// Display the graph 
$graph->Stroke(); 
?> 

效果圖: