我使用从 PHP/MySQL 提取的数据在谷歌可视化上创建饼图。
该图表看起来不错，但我想添加一个日历（日期选择器）以使饼图动态化。
我的日期范围选择器似乎正在工作。它从我的数据库中提取正确的数据。
选择日期：
提交查询后：
它返回此字符串：(overall_ban_pos_pie_date.php)
{"cols":[{"id":"0","label":"Column 1","type":"string"},{"id":"1","label":"Count","type":"number"}],"rows":[{"c":[{"v":"String Value 1"},{"v":6}]},{"c":[{"v":"String Value 2"},{"v":4}]}]}
该字符串可由谷歌可视化读取。如果我使用此 PHP 页面作为饼图的数据表源，它将显示其值。
我的问题/问题是：
单击“提交查询”按钮后，它会将我定向到 php 字符串页面。我想要发生的是，当用户选择开始和结束日期并单击提交查询时，我需要根据从数据库查询的日期更改饼图，而不是定向到overall_ban_pos_pie_date.php（我用于我的饼图作为使用 JSON 字符串的数据表）。我希望这可以将我重定向到我的
饼图页面：（日历_测试.html）
有人可以告诉我该怎么做吗？提前致谢。
PHP 代码：(overall_ban_pos_pie_date.php)
<?php
$con = mysql_connect("localhost","root","");
if (!$con)
die('Could not connect: ' . mysql_error());
mysql_select_db("db_campanaltest", $con);
$j=0;
$k=1;
$l=0;
$label = array("String Value 1","String Value 2");
$cols = '{"cols":[{"id":"'.$j.'","label":"Column 1","type":"string"},{"id":"'.$k.'","label":"Count","type":"number"}],';
$field1 = $_POST['startdate'];
$field2 = $_POST['enddate'];
$query = mysql_query("SELECT fk_IntCampID, COUNT( * ) AS count
FROM tbl_trans2
WHERE date
BETWEEN '".$field1."'
AND '".$field2."'
AND fk_IntCampID = '1'
AND eventScored = 'Y'
AND scoreQuoteSent = 'Y'
OR date
BETWEEN '".$field1."'
AND '".$field2."'
AND fk_IntCampID = '5'
AND eventScored = 'Y'
AND scoreQuoteSent = 'Y'
GROUP BY fk_IntCampID");
while($r = mysql_fetch_assoc($query)){
$rows[] = '{"c":[{"v":'.'"'. $label[$l].'"},{"v":'. $r['count'].'}]}';
$l++;
}
$google_JSON_row =implode(",",$rows);
echo $cols . '"rows":[',$google_JSON_row ."]}";
?>
HTML 页面：显示日历和饼图（希望如此）
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.6.2.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript"
src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1','packages':['corechart','table','piechart']}]}">
</script>
<script type="text/javascript">
google.setOnLoadCallback(pieChart);
function pieChart() {
var startdate = "";
var enddate = "";
if ($("#datepicker").hasClass('hasDatepicker')) {
startdate = $("#datepicker").datepicker('getDate');
}
if ($("#datepicker2").hasClass('hasDatepicker')) {
enddate = $("#datepicker2").datepicker('getDate');
}
var pieJsonData = $.ajax({
url: "overall_ban_pos_pie_date.php?startdate=" + startdate + "&enddate=" + enddate,
dataType:"json",
async: false
}).responseText;
var pieData = new google.visualization.DataTable(pieJsonData);
var pieChartWrapper = new google.visualization.ChartWrapper({
'chartType': 'PieChart',
'containerId': 'pie_div',
'dataTable':pieData,
'options': {
chartArea:{left:10,top:40,height:200,width:360},
width:300,
height:260,
title: "Neutral Percentage",
titleTextStyle:{fontSize:12},
tooltip:{showColorCode:true},
legend:{textStyle:{fontSize: 10},position:'left'},
pieSliceTextStyle:{fontSize: 10}
}
});
pieChartWrapper.draw();
}
</script>
<script>
$(document).ready(function() {
$("#datepicker").datepicker({dateFormat: "yy-mm-dd"});
});
$(document).ready(function() {
$("#datepicker2").datepicker({dateFormat: "yy-mm-dd"});
});
$("#pieChart").click(function(e) {
e.preventDefault();
pieChart();
});
</script>
</head>
<body style="font-size:62.5%;">
<form action="overall_ban_pos_pie_date.php" method="post">
Start Date: <input type="text" name="startdate" id="datepicker"/>
End Date: <input type="text" name="enddate" id="datepicker2"/>
<input type="submit" id="pieChart"/>
</form>
<div id="pie_div"></div>
</body>
</html>
