使用php和google图表从mysql数据库创建饼图字符
我正在尝试为我的数据库表创建一个饼图字符使用php和google图表从mysql数据库创建饼图字符,php,json,graph,google-visualization,Php,Json,Graph,Google Visualization,我正在尝试为我的数据库表创建一个饼图字符 temp -> with columns(id, sent, pcount, ncount) pcount和ncount是整数。我想为这两个值创建一个饼图 我正在尝试加载此文件 <html> <head> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text
temp -> with columns(id, sent, pcount, ncount)
pcountncount<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart()
{
var jsonData = $.ajax({
url: "graphData.php",
dataType:"json",
async: false
}).responseText;
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(jsonData);
var options = {'title':'Ticket Sales',
'width':500,
'height':400};
// Instantiate and draw our chart, passing in some options.
var chart = new google.visualization.ColumnChart(document.getElementById('chart_div'));
chart.draw(data,options);
}
</script>
</head>
<body>
<!--Div that will hold the pie chart-->
<div id="chart_div"></div>
</body>
</html>
load（“可视化”、“1”、{packages:[“corechart”]}）；
setOnLoadCallback（drawChart）；
函数绘图图（）
{
var jsonData=$.ajax({
url:“graphData.php”，
数据类型：“json”，
异步：false
}).responseText；
//使用从服务器加载的JSON数据创建我们的数据表。
var data=新的google.visualization.DataTable（jsonData）；
var options={'title'：'ticketsales'，
“宽度”：500，
‘高度’：400}；
//实例化并绘制图表，传入一些选项。
var chart=new google.visualization.ColumnChart（document.getElementById（'chart_div'））；
图表绘制（数据、选项）；
}
<?php
$con = mysqli_connect('127.0.0.1:3306', 'root', 'root', 'test');
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: ".mysqli_connect_error();
}
$sql = "SELECT pcount,count(*) AS count from temp";
if ($result=mysqli_query($con,$sql))
{
$rownum=mysqli_num_rows($result);
printf("Result set has %d rows.\n",$rownum);
mysqli_free_result($result);
}
//start the json data in the format Google Chart js/API expects to receieve it
$data = array('cols' => array(array('label' => 'pcount', 'type' => 'int'),
array('label' => 'mcount', 'type' => 'int')),
'rows' => array());
while($row = mysqli_fetch_row($result)) {
$data['rows'][] = array('c' => array(array('v' => $row[0]), array('v' => $row[1])));
}
echo json_encode($data);
?>
因此，现在提交您的更改，然后将您的脚本与最后一次工作提交区分开来。这将显示您所做的更改，并且通常更容易发现您引入错误的部分。以下是从PHP中的我的sql表创建饼图（只更改其他图表的函数名）的代码 重要的是要记住
array('label' => 'ind_type', 'type' => 'string'),
array('label' => 'sum', 'type' => 'number')
<?php
/*
Script : PHP-JSON-MySQLi-GoogleChart
Author : Enam Hossain
version : 1.0
*/
/*
--------------------------------------------------------------------
Usage:
--------------------------------------------------------------------
Requirements: PHP, Apache and MySQL
Installation:
--- Create a database by using phpMyAdmin and name it "chart"
--- Create a table by using phpMyAdmin and name it "googlechart" and make sure table has only two columns as I have used two columns. However, you can use more than 2 columns if you like but you have to change the code a little bit for that
--- Specify column names as follows: "weekly_task" and "percentage"
--- Insert some data into the table
--- For the percentage column only use a number
---------------------------------
example data: Table (googlechart)
---------------------------------
weekly_task percentage
----------- ----------
Sleep 30
Watching Movie 10
job 40
Exercise 20
*/
/* Establish the database connection */
// $mysqli = new mysqli_connect('127.0.0.1:3306', 'root', 'root', 'test');
/* if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
} */
$mysqli =mysqli_connect('127.0.0.1:3306', 'root', 'root', 'test');
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: ".mysqli_connect_error();
}
/* select all the weekly tasks from the table googlechart */
$result = $mysqli->query('SELECT * FROM new_temp');
/*
---------------------------
example data: Table (googlechart)
--------------------------
Weekly_Task percentage
Sleep 30
Watching Movie 10
job 40
Exercise 20
*/
$rows = array();
$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 Slice title
*/
array('label' => 'ind_type', 'type' => 'string'),
array('label' => 'sum', 'type' => 'number')
);
/* Extract the information from $result */
foreach($result as $r) {
$temp = array();
// The following line will be used to slice the Pie chart
$temp[] = array('v' => (string) $r['ind_type']);
// Values of the each slice
$temp[] = array('v' => (int) $r['sum']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
// convert data into JSON format
$jsonTable = json_encode($table);
//echo $jsonTable;
?>
<html>
<head>
<!--Load the Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
function drawChart() {
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
title: 'Index analysis',
is3D: 'true',
width: 800,
height: 600
};
// Instantiate and draw our chart, passing in some options.
// Do not forget to check your div ID
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<!--this is the div that will hold the pie chart-->
<div id="chart_div"></div>
</body>
</html>
//加载可视化API和piechart包。
load（'visualization'，'1'，{'packages'：['corechart']}）；
//将回调设置为在加载Google Visualization API时运行。
setOnLoadCallback（drawChart）；
函数绘图图（）{
//使用从服务器加载的JSON数据创建我们的数据表。
var data=new google.visualization.DataTable（）；
变量选项={
标题：“指数分析”，
is3D:'正确'，
宽度：800，
身高：600
};
//实例化并绘制图表，传入一些选项。
//别忘了检查你的部门ID
var chart=new google.visualization.PieChart（document.getElementById（'chart_div'）；
图表绘制（数据、选项）；
}
array('label' => 'ind_type', 'type' => 'string'),
array('label' => 'sum', 'type' => 'number')
<?php
/*
Script : PHP-JSON-MySQLi-GoogleChart
Author : Enam Hossain
version : 1.0
*/
/*
--------------------------------------------------------------------
Usage:
--------------------------------------------------------------------
Requirements: PHP, Apache and MySQL
Installation:
--- Create a database by using phpMyAdmin and name it "chart"
--- Create a table by using phpMyAdmin and name it "googlechart" and make sure table has only two columns as I have used two columns. However, you can use more than 2 columns if you like but you have to change the code a little bit for that
--- Specify column names as follows: "weekly_task" and "percentage"
--- Insert some data into the table
--- For the percentage column only use a number
---------------------------------
example data: Table (googlechart)
---------------------------------
weekly_task percentage
----------- ----------
Sleep 30
Watching Movie 10
job 40
Exercise 20
*/
/* Establish the database connection */
// $mysqli = new mysqli_connect('127.0.0.1:3306', 'root', 'root', 'test');
/* if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
} */
$mysqli =mysqli_connect('127.0.0.1:3306', 'root', 'root', 'test');
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: ".mysqli_connect_error();
}
/* select all the weekly tasks from the table googlechart */
$result = $mysqli->query('SELECT * FROM new_temp');
/*
---------------------------
example data: Table (googlechart)
--------------------------
Weekly_Task percentage
Sleep 30
Watching Movie 10
job 40
Exercise 20
*/
$rows = array();
$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 Slice title
*/
array('label' => 'ind_type', 'type' => 'string'),
array('label' => 'sum', 'type' => 'number')
);
/* Extract the information from $result */
foreach($result as $r) {
$temp = array();
// The following line will be used to slice the Pie chart
$temp[] = array('v' => (string) $r['ind_type']);
// Values of the each slice
$temp[] = array('v' => (int) $r['sum']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
// convert data into JSON format
$jsonTable = json_encode($table);
//echo $jsonTable;
?>
<html>
<head>
<!--Load the Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
function drawChart() {
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
title: 'Index analysis',
is3D: 'true',
width: 800,
height: 600
};
// Instantiate and draw our chart, passing in some options.
// Do not forget to check your div ID
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<!--this is the div that will hold the pie chart-->
<div id="chart_div"></div>
</body>
</html>
//加载可视化API和piechart包。
load（'visualization'，'1'，{'packages'：['corechart']}）；
//将回调设置为在加载Google Visualization API时运行。
setOnLoadCallback（drawChart）；
函数绘图图（）{
//使用从服务器加载的JSON数据创建我们的数据表。
var data=new google.visualization.DataTable（）；
变量选项={
标题：“指数分析”，
is3D:'正确'，
宽度：800，
身高：600
};
//实例化并绘制图表，传入一些选项。
//别忘了检查你的部门ID
var chart=new google.visualization.PieChart（document.getElementById（'chart_div'）；
图表绘制（数据、选项）；
}