PHP report jpgraph histogram example_PHP tutorial

jpgraph is a very, very powerful third-party reporting tool in PHP. 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. After many experiments by myself, the garbled problem is solved

$datay=array(); //Vertical coordinate data

$datax=array(); //Abscissa data

foreach ($usernums as $key => $value){
$datay[] = $value;
$datax[] = $userids[$key];
}

require_once (‘jpgraph-3.0.7/jpgraph/jpgraph.php’);
require_once (‘jpgraph-3.0.7/jpgraph/jpgraph_bar.php’);

// Create the graph. These two calls are always required
$graph = new Graph(800,600); //Image height and width
$graph->SetScale(“textlin”);

$graph->xaxis->SetTickLabels($datax);

$graph->xaxis->SetFont(FF_VERDANA,FS_NORMAL,10);
$graph->xaxis->SetLabelAngle(30);

$graph->yaxis->scale->SetGrace(20);
$graph->xaxis->scale->SetGrace(20);
// Add a drop shadow
$graph->SetShadow();

// Adjust the margin a bit to make more room for titles
$graph->img->SetMargin(40,30,20,40);

// Create a bar pot
$bplot = new BarPlot($datay);

// Adjust fill color
$bplot->SetFillColor('orange');
$bplot->value->Show();
$bplot->value-> ;SetFont(FF_ARIAL,FS_BOLD,10);
$bplot->value->SetAngle(45);
$bplot->value->SetFormat('%d');
$graph->Add($bplot);

// Setup the titles
$graph->title->Set(iconv(“UTF-8″, “gb2312″,”User consumption report graph”));
$graph-> ;xaxis->title->Set(iconv(“UTF-8″, “gb2312″,”User Name”));
$graph->yaxis->title->Set(iconv( “UTF-8″, “gb2312″,”User order quantity”));

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

// Display the graph
$graph->Stroke();

?>

Rendering:

jpgraph download address: jpgraph-002d3.0.7.tar.gz

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http://www.bkjia.com/PHPjc/364589.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/364589.htmlTechArticlejpgraph is a very, very powerful third-party reporting tool in php. It is said to be able to complete everything you want for graphics novices When you first meet jpgraph, you will definitely encounter various problems, such as garbled characters and so on...