Jas*_*ava 11 php mysql ajax google-api google-visualization
我一直在寻找这个.我得到了解决方案.在这里.它是在php中使用AJAX完成的.我有两个页面是googleapi.php和其他getData.php,它是由googleapi.php发送的AJAX请求使用的.
googleapi.php
<html>
<head>
<!--Load the Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
//google.setOnLoadCallback(drawChart);
function drawChart(object) {
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(object);
var options = {
title: 'Test API',
is3D: 'true',
width: 200,
height: 100
};
// Instantiate and draw our chart, passing in some options.
// Do not forget to check your div ID
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
function show()
{
xmlhttp = new XMLHttpRequest();
xmlhttp.open("GET","getdata.php?name=jaspreet",true);
xmlhttp.send();
xmlhttp.onreadystatechange = getResponse;
}
function getResponse()
{
if(xmlhttp.readyState==4){
alert(xmlhttp.responseText);
var obj = JSON.parse(xmlhttp.responseText);
drawChart(obj);
}
}
</script>
</head>
<body>
<!--this is the div that will hold the pie chart-->
<div id="chart_div"></div>
<select id="name" onchange="show();">
<option value="test">test</option>
<option value="test1">test1</option>
<option value="test2">test2</option>
</select>
</body>
</html>
访问getdata.php
<?php $con=mysql_connect("localhost","root","") or die("Failed to connect with database!!!!");
mysql_select_db("student", $con);
// The Chart table contains two fields: weekly_task and percentage
// This example will display a pie chart. If you need other charts such as a Bar chart, you will need to modify the code a little to make it work with bar chart and other charts
$sth = mysql_query("SELECT * FROM marks where name='jas'");
/*
---------------------------
example data: Table (Chart)
--------------------------
marks percentage
English 30
Maths 40
Science 44
*/
$rows = array();
//flag is not needed
$flag = true;
$table = array();
$table['cols'] = array(
// Labels for your chart, these represent the column titles
// Note that one column is in "string" format and another one is in "number" format as pie chart only required "numbers" for calculating percentage and string will be used for column title
array('label' => 'subject', 'type' => 'string'),
array('label' => 'marks', 'type' => 'number')
);
$rows = array();
while($r = mysql_fetch_assoc($sth)) {
$temp = array();
// the following line will be used to slice the Pie chart
$temp[] = array('v' => (string) $r['subject']);
// Values of each slice
$temp[] = array('v' => (int) $r['marks']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
$jsonTable = json_encode($table);
echo $jsonTable;
?>
这就是全部,您需要创建一个数据库.它就像一个魅力.
我知道你的帖子是一个“答案”，但我想我会插话。如果你想动态地将数据输入到 Google 图表中，你可以简单地使用 PHP 回显到 javascript 中。php 可用于从服务器或 mysql 表获取信息。
这是一个例子：
<?php $i = 0; $grab = mysql_query("SELECT * FROM `productList` WHERE 1");
$pricelist = mysql_fetch_array($grab);
$numberofproducts = mysql_num_rows($grab);
?>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable([
['parts', 'Prices'],
['Number of Products', <?php echo $numberofproducts;?>],
]);
var options = {
title: 'Number of Products',
hAxis: {title: '', titleTextStyle: {color: 'red'}},
width: 980,
height: 200
};
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data, options);
}