PHP jpgraph库的配置及生成多种统计图表-百分百源码网

PHP jpgraph库的配置及生成多种统计图表

发布时间：09/01 来源：未知浏览：关键词：

JpGraph简介

JpGraph是开源的PHP统计图表生成库，基于PHP的GD2图形库构建，把生成统计图的相关操纵封装，潜藏了部分复杂的操纵，使在PHP页面上输出统计图表变得愈加容易。JpGraph的官方网站为：http://jpgraph.net，开发者可以在上面免费下载最新版的JpGraph和阅读相关帮忙文档或示例程序。

相关学习引荐：PHP编程从入门到熟知

JpGraph的配置

（1）修改文件php.ini

在include_path中增加jpgraph的名目途径，并将jpgraph解压后的src名目名称更换为jpgraph。

（2）检查PHP可否支撑GD库

在php.ini文件中寻到语句;extension=php_gd2.dll。把上述语句前的;号去除，即去除注释。假如由于PHP版本不一样而寻不到此语句，则可直接增加extension=php_gd2.dll

（3）修改文件jpgraph_gb2312.php

寻到函数：function gb2utf8($gb)

把函数修改为：

  function gb2utf8($gb) {
  return $gb;
  }

即不使用gb2编码方式转utf8方式的那段代码。

折线图

<?php 
require_once ("jpgraph/jpgraph.php"); 
require_once ("jpgraph/jpgraph_line.php"); 

$data1 = array(523,634,371,278,685,587,490,256,398,545,367,577); //第一条曲线的数组 

$graph = new Graph(500,300);  
$graph->SetScale("textlin"); 
$graph->SetShadow();   
$graph->img->SetMargin(60,30,30,70); //设定图像边距 

$graph->graph_theme = null; //设定主题为null，不然value->Show(); 无效 

$lineplot1=new LinePlot($data1); //创立设定两条曲线对象 
$lineplot1->value->SetColor("red"); 
$lineplot1->value->Show(); 
$graph->Add($lineplot1); //将曲线放置到图像上 

$graph->title->Set("CDN流量图");  //设定图像标题 
$graph->xaxis->title->Set("月份"); //设定坐标轴名称 
$graph->yaxis->title->Set("流 量(Gbits)"); 
$graph->title->SetMargin(10); 
$graph->xaxis->title->SetMargin(10); 
$graph->yaxis->title->SetMargin(10); 

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设定字体 
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD); 
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);  
$graph->xaxis->SetTickLabels($gDateLocale->GetShortMonth()); 
$graph->Stroke(); //输出图像 
?>

柱状图

<?php 
require_once ("jpgraph/jpgraph.php"); 
require_once ("jpgraph/jpgraph_bar.php"); 

$data = array(19,23,34,38,45,67,71,78,85,87,96,145);      
$ydata = array("一","二","三","四","五","六","七","八","九","十","十一","十二"); 

$graph = new Graph(500,300); //创立新的Graph对象 
$graph->SetScale("textlin"); //刻度样式 
$graph->SetShadow();     //设定暗影 
$graph->img->SetMargin(40,30,40,50); //设定边距 

$graph->graph_theme = null; //设定主题为null，不然value->Show(); 无效 

$barplot = new BarPlot($data); //创立BarPlot对象 
$barplot->SetFillColor('blue'); //设定色彩 
$barplot->value->Show(); //设定显示数字 
$graph->Add($barplot); //将柱形图增加到图像中 

$graph->title->Set("CDN流量图");  
$graph->xaxis->title->Set("月份"); //设定标题和X-Y轴标题 
$graph->yaxis->title->Set("流 量(Mbits)");                                    
$graph->title->SetColor("red"); 
$graph->title->SetMargin(10); 
$graph->xaxis->title->SetMargin(5); 
$graph->xaxis->SetTickLabels($ydata); 

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设定字体 
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD); 
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD); 
$graph->xaxis->SetFont(FF_SIMSUN,FS_BOLD); 
$graph->Stroke(); 
?>

饼状图

<?php 
require_once ("jpgraph/jpgraph.php"); 
require_once ("jpgraph/jpgraph_pie.php"); 
require_once ("jpgraph/jpgraph_pie3d.php"); 

$data = array(19,23,34,38,45,67,71,78,85,87,90,96); 

$graph = new PieGraph(550,500); 
$graph->SetShadow(); 

$graph->title->Set("CDN流量比例"); 
$graph->title->SetFont(FF_SIMSUN,FS_BOLD); 

$pieplot = new PiePlot3D($data); //创立PiePlot3D对象 
$pieplot->SetCenter(0.4, 0.5); //设定饼图中心的位置 
$pieplot->SetLegends($gDateLocale->GetShortMonth()); //设定图例 
$graph->Add($pieplot); 
$graph->Stroke(); 
?>