PHP report jpgraph histogram example_PHP tutorial

jpgraph is a very, very powerful third-party reporting tool in the PHP tutorial. It is said to be able to complete all the graphics you want... Novices who are new to jpgraph will definitely encounter various problems, such as garbled characters. This case is produced by jpgraph3.0.7 and has been solved through many experiments by myself.

<?php<br /><br />$datay=array();      //纵坐标数据<br /><br />$datax=array();     //横坐标数据<br /><br />foreach ($usernums as $key => $value){<br>$datay[] = $value;<br>$datax[] = $userids[$key];<br>}<br><br>require_once (‘jpgraph-3.0.7/jpgraph/jpgraph.php’);<br>require_once (‘jpgraph-3.0.7/jpgraph/jpgraph_bar.php’);<br><br>// Create the graph. These two calls are always required<br>$graph = new Graph(800,600);    //图像高宽<br>$graph->SetScale(“textlin”);<br><br>$graph->xaxis->SetTickLabels($datax);<br><br>$graph->xaxis->SetFont(FF_VERDANA,FS_NORMAL,10);<br>$graph->xaxis->SetLabelAngle(30);<br><br>$graph->yaxis->scale->SetGrace(20);<br>$graph->xaxis->scale->SetGrace(20);<br>// Add a drop shadow<br>$graph->SetShadow();<br><br>// Adjust the margin a bit to make more room for titles<br>$graph->img->SetMargin(40,30,20,40);<br><br>// Create a bar pot<br>$bplot = new BarPlot($datay);<br><br>// Adjust fill color<br>$bplot->SetFillColor(‘orange’);<br>$bplot->value->Show();<br>$bplot->value->SetFont(FF_ARIAL,FS_BOLD,10);<br>$bplot->value->SetAngle(45);<br>$bplot->value->SetFormat(‘%d’);<br>$graph->Add($bplot);<br><br>// Setup the titles<br>$graph->title->Set(iconv(“UTF-8″, “gb2312″,”用户消费报表图”));<br>$graph->xaxis->title->Set(iconv(“UTF-8″, “gb2312″,”用户姓名”));<br>$graph->yaxis->title->Set(iconv(“UTF-8″, “gb2312″,”用户订单数量”));<br><br>$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);<br>$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);<br>$graph->title->SetFont(FF_SIMSUN,FS_BOLD);<br><br>// Display the graph<br>$graph->Stroke();<br><br>?>

​
Rendering:

http://www.bkjia.com/PHPjc/632977.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632977.htmlTechArticlejpgraph is a very, very powerful third-party reporting tool in the PHP tutorial. It is said to be able to complete all the graphics you want. Novices who are new to jpgraph will definitely encounter various problems, such as garbled characters...