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How to Generate Google Charts (Pie, Bar, Column, and Table) Using PHP, MySQL, and JSON?
- Linda HamiltonOriginal
- 2024-11-16 14:03:02650browse
PHP MySQL Google Chart JSON - Complete Example
Using MySQL table data as a data source to generate Google Chart, I found many examples. I searched for a few days and found that there are very few examples on the Internet that use PHP and MySQL to generate Google Charts (pie charts, bar charts, bar charts, tables). I finally found an example that works.
I have received a lot of help from StackOverflow before, so I want to give back this time.
I have two examples, one with Ajax and one without. Today, I'll only show non-Ajax examples.
Usage:
- Requirements: PHP, Apache and MySQL
-
Installation:
- Create a database using phpMyAdmin and name it "chart"
- Create a table using phpMyAdmin and name it "googlechart" and make sure it only has two columns because I used two columns . However, if you want to use more columns, you can also make slight modifications to the code as instructed
- Specify the column names as follows: "weekly_task" and "percentage"
- Insert in the table For some data, only numbers can be used in the field "_percentage_"
Example of PHP-MySQL-JSON-Google Chart:
<?php
$con=mysql_connect("localhost","Username","Password") or die("Failed to connect with database!!!!");
mysql_select_db("資料庫名稱", $con);
// Google Chart 表格包含兩個欄位，分別是 weekly_task 和 percentage
// 這個範例將顯示一個圓餅圖，如果你需要其他的圖表例如長條圖，你必須對程式碼做一些微幅的調整，才能與長條圖或其他圖表搭配
$sth = mysql_query("SELECT * FROM chart");
/*
---------------------------
範例資料：表格 (Chart)
--------------------------
weekly_task percentage
Sleep 30
Watching Movie 40
work 44
*/
// flag 不需要
$flag = true;
$table = array();
$table['cols'] = array(
// 圖表的標籤，代表欄位標題
// 注意，一個欄位使用 "string" 格式，另一個使用 "number" 格式，因為圓餅圖只使用 "數字" 來計算百分比，字串則用於欄位標題
array('label' => 'Weekly Task', 'type' => 'string'),
array('label' => 'Percentage', 'type' => 'number')
);
$rows = array();
while($r = mysql_fetch_assoc($sth)) {
$temp = array();
// 下列程式碼用於分割圓餅圖
$temp[] = array('v' => (string) $r['Weekly_task']);
// 每一個分塊的值
$temp[] = array('v' => (int) $r['percentage']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
$jsonTable = json_encode($table);
//echo $jsonTable;
?>
<html>
<head>
<!--載入 Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// 載入視覺化 API 及圓餅圖套件。
google.load('visualization', '1', {'packages':['corechart']});
// 設定一個 callback 在 Google Visualization API 載入時執行。
google.setOnLoadCallback(drawChart);
function drawChart() {
// 從伺服器載入的 JSON 資料中，建立我們的資料表格。
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
title: '我的每週計畫',
is3D: 'true',
width: 800,
height: 600
};
// 使用部分選項，實例化並繪製我們的圖表。
// 別忘了檢查你的 div ID
var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
<body>
<!--這是會放置圓餅圖的 div-->
<div>Example of PHP-PDO-JSON-MySQL-Google Chart:
<?php
/*
指令碼 : PHP-PDO-JSON-mysql-googlechart
作者 : Enam Hossain
版本 : 1.0
*/
/*
--------------------------------------------------------------------
使用方式：
--------------------------------------------------------------------
需求：PHP、Apache 及 MySQL
安裝：
--- 使用 phpMyAdmin 建立一個資料庫，並將其命名為 "chart"
--- 使用 phpMyAdmin 建立一個表格，並將其命名為 "googlechart"，並確保它只有兩欄，因為我使用了兩欄。不過，如果你想用更多欄，也可以按照指示對程式碼做些微的修改
--- 指定欄位名稱如下："weekly_task" 和 "percentage"
--- 在表格中插入一些資料
--- _percentage_ 欄位只能使用數字
---------------------------------
範例資料：表格 (googlechart)
---------------------------------
weekly_task percentage
----------- ----------
Sleep 30
Watching Movie 10
job 40
Exercise 20
*/
/* 資料庫名稱 */
$dbname = 'chart';
/* 資料庫使用者名稱與密碼 */
$username = 'root';
$password = '123456';
try {
/* 建立資料庫連線 */
$conn = new PDO("mysql:host=localhost;dbname=$dbname", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
/* 從 googlechart 表格中選出所有 weekly tasks */
$result = $conn->query('SELECT * FROM googlechart');
/*
---------------------------
範例資料：表格 (googlechart)
--------------------------
weekly_task percentage
Sleep 30
Watching Movie 10
job 40
Exercise 20
*/
$rows = array();
$table = array();
$table['cols'] = array(
// 圖表的標籤，代表欄位標題。
/*
注意，一個欄位使用 "string" 格式，另一個使用 "number" 格式，因為圓餅圖只使用 "數字" 來計算百分比，字串則用於分塊標題
*/
array('label' => 'Weekly Task', 'type' => 'string'),
array('label' => 'Percentage', 'type' => 'number')
);
/* 抽取 $result 中的資訊 */
foreach($result as $r) {
$temp = array();
// 下列程式碼用於分割圓餅圖
$temp[] = array('v' => (string) $r['weekly_task']);
// 每一個分塊的值
$temp[] = array('v' => (int) $r['percentage']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
// 將資料轉換成 JSON 格式
$jsonTable = json_encode($table);
//echo $jsonTable;
} catch(PDOException $e) {
echo '錯誤：' . $e->getMessage();
}
?>
<html>
<head>
<!--載入 Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// 載入視覺化 API 及圓餅圖套件。
google.load('visualization', '1', {'packages':['corechart']});
// 設定一個 callback 在 Google Visualization API 載入時執行。
google.setOnLoadCallback(drawChart);
function drawChart() {
// 從伺服器載入的 JSON 資料中，建立我們的資料表格。
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
title: '我的每週計畫',
is3D: 'true',
width: 800,The above is the detailed content of How to Generate Google Charts (Pie, Bar, Column, and Table) Using PHP, MySQL, and JSON?. For more information, please follow other related articles on the PHP Chinese website!
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