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我正在使用jpgraph爲我的網站繪製一些統計圖,並且我想在不刷新頁面的情況下執行此操作。所以我把jpgraph代碼放在一個單獨的文件中,命名爲plot_graphs.php並通過AJAX發送請求。現在,如果我直接打開文件plot_graphs.php,它會打開圖形就好了。但是,當我從AJAX打開它,並指出它在頁面上顯示的<div>
的響應,我得到的是這樣的:從AJAX圖像(圖)顯示爲一組符號頁
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等等等等
有沒有辦法得到這個無需重新加載工作頁面並將plot_graphs.php代碼直接放入div中?萬一它很重要,頁面的字符集是utf-8。這些是plot_graphs.php的內容:
<?php
require_once ('../jpgraph/src/jpgraph.php');
require_once ('../jpgraph/src/jpgraph_line.php');
$type=$_GET['type'];
$unit=$_GET['unit'];
$term=$_GET['term'];
$datay1 = array(20,15,23,15);
$datay2 = array(12,9,42,8);
$datay3 = array(5,17,32,24);
// Setup the graph
$graph = new Graph(300,250);
$graph->SetScale("textlin");
$theme_class=new UniversalTheme;
$graph->SetTheme($theme_class);
$graph->img->SetAntiAliasing(false);
$graph->title->Set('Filled Y-grid');
$graph->SetBox(false);
$graph->img->SetAntiAliasing();
$graph->yaxis->HideZeroLabel();
$graph->yaxis->HideLine(false);
$graph->yaxis->HideTicks(false,false);
$graph->xgrid->Show();
$graph->xgrid->SetLineStyle("solid");
$graph->xaxis->SetTickLabels(array('A','B','C','D'));
$graph->xgrid->SetColor('#E3E3E3');
/* $graph->SetBackgroundImage("tiger_bkg.png",BGIMG_FILLPLOT); */
// Create the first line
$p1 = new LinePlot($datay1);
$graph->Add($p1);
$p1->SetColor("#6495ED");
$p1->SetLegend('Line 1');
// Create the second line
$p2 = new LinePlot($datay2);
$graph->Add($p2);
$p2->SetColor("#B22222");
$p2->SetLegend('Line 2');
// Create the third line
$p3 = new LinePlot($datay3);
$graph->Add($p3);
$p3->SetColor("#FF1493");
$p3->SetLegend('Line 3');
$graph->legend->SetFrameWeight(1);
// Output line
$graph->Stroke();
?>