php生成图表,并和页面内容能够一起显示

<?php 
  // Snippet extracted from explore.php script 
  include ("jpgraph/jpgraph.php"); 
  include ("jpgraph/jpgraph_scatter.php"); 
  include ("jpgraph/jpgraph_line.php"); 
  // Create the graph 
  $graph = new Graph(300,200,'auto'); 
  $graph->SetScale("linlin"); 
  // Setup title   
  $graph->title->Set("$title"); 
  $graph->img->SetMargin(50,20,20,40);    
  $graph->xaxis->SetTitle("$x_name","center"); 
  $graph->yaxis->SetTitleMargin(30);      
  $graph->yaxis->title->Set("$y_name");  
  $graph->title->SetFont(FF_FONT1,FS_BOLD); 
  // make sure that the X-axis is always at the 
  // bottom at the plot and not just at Y=0 which is 
  // the default position   
  $graph->xaxis->SetPos('min'); 
  // Create the scatter plot with some nice colors 
  $sp1 = new ScatterPlot($slr->Y, $slr->X); 
  $sp1->mark->SetType(MARK_FILLEDCIRCLE); 
  $sp1->mark->SetFillColor("red"); 
  $sp1->SetColor("blue"); 
  $sp1->SetWeight(3); 
  $sp1->mark->SetWidth(4); 
  // Create the regression line 
  $lplot = new LinePlot($slr->PredictedY, $slr->X); 
  $lplot->SetWeight(2); 
  $lplot->SetColor('navy'); 
  // Add the pltos to the line 
  $graph->Add($sp1); 
  $graph->Add($lplot); 
  // ... and stroke 
  $graph_name = "temp/test.png";   // 最关键的地方
  $graph->Stroke($graph_name);     
// 最关键的地方
  ?>