今天想在Zend Framework架構中,使用Jpgraph第三庫,查了許多資料,逛了許多論壇,發現在中文論壇中,關於這方面的資料很少,所以把自己摸索得到的經驗,記錄下來。希望能給需要這方面資料的朋友，提供一些參考。
1、Jpgraph庫放在位置在library檔案夾下，如所示：
2、在ElectorController.php控制器中,調用"showmsguiAction"方法如下:
/** * 轉到顯示投票結果介面 */public function showmsguiAction(){}
3、顯示投票結果的頁面"showmsgui.html"如下:
<html><head><title>支援人數報表圖</title><meta http-equiv="content-type" content="text/html;charset=utf-8"/></head><h1>顯示支援兩位總統的支援人數情況統計圖</h1><table><tr><td><img src="/elector/showvote?id=1"/></td><td><img src="/elector/showvote?id=2"/></td></tr></table></html>
說明：其中關鍵之處在“electoral/showvote?id=1”和"elector/showvote?id=2",這裡需要對zend framework的原理有一定瞭解,這裡的意思是,圖片的來源是來自ElectorController.php控制器中showvoteAction方法的調用。
4、ElectorController.php控制器中showvoteAction原始碼如下:
/** * 調用Jpgraph介面,得到投票結果圖表 */public function showvoteAction(){//在調用Jpgraph介面時,禁用layout和viewRenderer,否則會出問題$this->_helper->getHelper ('layout')->disableLayout ();$this->_helper->getHelper ('viewRenderer')->setNoRender ();require_once ('../library/jpgraph/jpgraph.php');require_once ('../library/jpgraph/jpgraph_bar.php');$datay1=array(13,8,19,7,17,6);$datay2=array(0,0,0,0,0,0);// Create the graph.$graph = new Graph(350,250);$graph->SetScale('textlin');$graph->SetMarginColor('silver');// Setup title$id=$_REQUEST["id"];if($id==1){$title="Support Bushi Number";}else if($id==2){$title="Support AoBama Number";}$graph->title->Set($title);$graph->title->SetFont(30,FS_BOLD);// Create the first bar$bplot = new BarPlot($datay1);$bplot->SetFillGradient('AntiqueWhite2','AntiqueWhite4:0.8',GRAD_VERT);$bplot->SetColor('darkred');// Create the second bar$bplot2 = new BarPlot($datay2);$bplot2->SetFillGradient('olivedrab1','olivedrab4',GRAD_VERT);$bplot2->SetColor('darkgreen');// And join them in an accumulated bar$accbplot = new AccBarPlot(array($bplot,$bplot2));$graph->Add($accbplot);$graph->Stroke();}
5、得到的結果如所示：
6、我認為其中關鍵的地方在第三步中，如何在zend framework架構中調用需要的方法，其他和平時編寫的一樣。
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