解决JpGraph中文乱码问题的方法

//设置图表的标题字体、大小
$graph->title->Set("Accumulated bar plots");
$graph->xaxis->title->Set("X-title");
$graph->yaxis->title->Set("Y-title");

//和上面标题对应，设置标题的字体和大小
$graph->title->SetFont(FF_FONT1,FS_BOLD);
$graph->yaxis->title->SetFont(FF_FONT1,FS_BOLD);
$graph->xaxis->title->SetFont(FF_FONT1,FS_BOLD);

把它改为

//设置图表的标题字体、大小
$graph->title->Set(iconv("UTF-8","GB2312//IGNORE","网志博客信息统计表"));
$graph->xaxis->title->Set(iconv("UTF-8","GB2312//IGNORE","X-标题"));
$graph->yaxis->title->Set(iconv("UTF-8","GB2312//IGNORE","Y-标题"));

//和上面标题对应，设置标题的字体和大小
$graph->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_bar.php');

$data1y=array(0,8,9,3,5,6);
$data2y=array(18,2,1,7,5,4);

// Create the graph. These two calls are always required
$graph = new Graph(500,400);
$graph->SetScale("textlin");

$graph->SetShadow();
$graph->img->SetMargin(40,30,20,40);//设置图形的边距

// Create the bar plots
$b1plot = new BarPlot($data1y);
$b1plot->SetFillColor("orange");
$b1plot->value->Show();
$b2plot = new BarPlot($data2y);
$b2plot->SetFillColor("blue");
$b2plot->value->Show();

// Create the grouped bar plot
$gbplot = new AccBarPlot(array($b1plot,$b2plot));

// ...and add it to the graPH
$graph->Add($gbplot);
//设置标题字体样式
$graph->title->Set(iconv("UTF-8","GB2312//IGNORE","网志博客信息统计表"));
$graph->xaxis->title->Set(iconv("UTF-8","GB2312//IGNORE","X-标题"));
$graph->yaxis->title->Set(iconv("UTF-8","GB2312//IGNORE","Y-标题"));

$graph->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

$graph->Stroke();