0
ハイチャートを使用して基本的なカラムグラフを作成しています。次に、ドロップダウンメニューを使用して、ドロップダウン選択に応じたグラフを生成します。ドロップダウンを使用した動的ハイチャートチャート
これはコードです。
graph.php：
<?php
$con = mysql_connect("localhost","admin","123");
if (!$con) {
die('Could not connect: ' . mysql_error());
}
mysql_select_db("ctes1", $con);
$query = mysql_query("SELECT session1, semester, lect_name, course_code, average_a, average_b, average_c FROM course");
$category = array();
$category['name'] = 'course_code';
$series1 = array();
$series1['name'] = 'average_a';
$series2 = array();
$series2['name'] = 'average_b';
$series3 = array();
$series3['name'] = 'average_c';
while($r = mysql_fetch_array($query)) {
$category['data'][] = $r['lect_name'];
$series1['data'][] = $r['average_a'];
$series2['data'][] = $r['average_b'];
$series3['data'][] = $r['average_c'];
}
$result = array();
array_push($result,$category);
array_push($result,$series1);
array_push($result,$series2);
array_push($result,$series3);
print json_encode($result, JSON_NUMERIC_CHECK);
mysql_close($con);
?>
data.php
!DOCTYPE html>
<body>
<section id="create">
<h2>Create a new report</h2>
<p>Please select your preferences</p>
<?php
if (!isset($_POST['submit']))
{
?>
<table>
<form method="post" action="<?php echo($_SERVER["PHP_SELF"]);?>">
<tr>
<td>Session:
<td><select name="session" >
<option value="2013/2014">2013/2014</option>
<option value="2014/2015">2014/2015</option>
<option value="2015/2016">2015/2016</option>
</select>
</tr>
<tr>
<td>Semester:
<td><select name="semester" >
<option value="1">1</option>
<option value="2">2</option>
</select>
</tr>
</table>
<br>
<input type="submit" name="submit">
<br><br>
</form>
<?php
}
else{
?>
<form method="post" action="<?php echo($_SERVER["PHP_SELF"]);?>">
<table>
<tr>
<td>Session:
<td><select name="session" >
<option value="2013/2014">2013/2014</option>
<option value="2014/2015">2014/2015</option>
<option value="2015/2016">2015/2016</option>
</select>
</tr>
<tr>
<td>Semester:
<td><select name="semester" >
<option value="1">1</option>
<option value="2">2</option>
</select>
</tr>
</table>
<br>
<input type="submit" name="submit">
<br><br>
</form>
<?php
$session = (trim($_POST['session']==' ')) ?die ('ERROR: Select session'):($_POST['session']);
$semester = (trim($_POST['semester']==' ')) ?die ('ERROR: Select semester'):($_POST['semester']);
[email protected]_connect('localhost','admin','123');
mysql_select_db('ctes1') or die ('Unable to select a Database!');
$query="SELECT lect_name,course_code, average_a, average_b, average_c FROM course WHERE session1 = '$session' AND semester = '$semester'";
$results = mysql_query($query);
if(isset($_POST['submit'])){
if(mysql_num_rows($results)>0){
//print graph
?>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Column chart with data from MySQL using Highcharts</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var options = {
chart: {
renderTo: 'container',
type: 'column',
marginRight: 130,
marginBottom: 150
},
title: {
text: 'LECTURER CTES SCORE',
x: -20 //center
},
subtitle: {
text: '',
x: -20
},
xAxis: {
categories: []
},
yAxis: {
title: {
text: 'average score'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
formatter: function() {
return '<b>'+ this.series.name +'</b><br/>'+
this.x +': '+ this.y;
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'top',
x: -10,
y: 100,
borderWidth: 3
},
series: []
}
$.getJSON("data.php", function(json) {
options.xAxis.categories = json[0]['data'];
options.series[0] = json[1];
options.series[1] = json[2];
options.series[2] = json[3];
chart = new Highcharts.Chart(options);
});
});
</script>
<?php
}
?>
</head>
<body>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; height: 500px; margin: 0 auto"></div>
<?php
}
else
{
//print error message
echo 'No result found';
}
// once processing is complete
// free result set
mysql_free_result ($results);
// close connection to MySQL Server
mysql_close ($connection);
}
?>
</section>
</body>
</html>
問題は、私は、データへのセッションや学期変数を渡す方法がわからないです。 PHPページ。
私は誰かが私を助けることを願っています、ありがとう。