本文实例讲述了php使用Jpgraph绘制柱形图的方法。分享给大家供大家参考。具体实现方法如下：

<?php

include ("src/jpgraph.php");

include ("src/jpgraph_bar.php");

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

$graph = new Graph(400,300); //创建新的Graph对象

$graph->SetScale("textlin");

$graph->SetShadow(); //设置阴影

$graph->img->SetMargin(40,30,20,40); //设置边距

$barplot = new BarPlot($data); //创建BarPlot对象

$barplot->SetFillColor('blue'); //设置颜色

$barplot->value->Show(); //设置显示数字

$graph->Add($barplot); //将柱形图添加到图像中

$graph->title->Set("年度收支表"); //设置标题和X-Y轴标题

$graph->xaxis->title->Set("月份");

$graph->yaxis->title->Set("总金额（兆美元）");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设置字体

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

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

$graph->Stroke();

?>