PHP MySQL Google Chart JSON - Exemplo Completo
Eu tenho procurado muito para encontrar um bom exemplo para gerar um gráfico do Google usando dados da tabela MySQL como fonte de dados. Procurei por alguns dias e percebi que há poucos exemplos disponíveis para gerar um gráfico do Google (pizza, barra, coluna, tabela) usando uma combinação de PHP e MySQL. Eu finalmente consegui um exemplo trabalhando.
Eu já recebi muita ajuda do StackOverflow, então desta vez retornarei alguns.
Eu tenho dois exemplos; um usa Ajax e o outro não. Hoje, mostrarei apenas o exemplo não-Ajax.
Uso:
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
Exemplo de gráfico PHP-MySQL-JSON-Google:
<?php
$con=mysql_connect("localhost","Username","Password") or die("Failed to connect with database!!!!");
mysql_select_db("Database Name", $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 chart");
/*
---------------------------
example data: Table (Chart)
--------------------------
weekly_task percentage
Sleep 30
Watching Movie 40
work 44
*/
//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' => 'Weekly Task', 'type' => 'string'),
array('label' => 'Percentage', '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['Weekly_task']);
// Values of each slice
$temp[] = array('v' => (int) $r['percentage']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
$jsonTable = json_encode($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: 'My Weekly Plan',
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>
Exemplo de gráfico do PHP-PDO-JSON-MySQL-Google:
<?php
/*
Script : PHP-PDO-JSON-mysql-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
*/
/* Your Database Name */
$dbname = 'chart';
/* Your Database User Name and Passowrd */
$username = 'root';
$password = '123456';
try {
/* Establish the database connection */
$conn = new PDO("mysql:host=localhost;dbname=$dbname", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
/* select all the weekly tasks from the table googlechart */
$result = $conn->query('SELECT * FROM googlechart');
/*
---------------------------
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' => 'Weekly Task', 'type' => 'string'),
array('label' => 'Percentage', '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['weekly_task']);
// Values of each slice
$temp[] = array('v' => (int) $r['percentage']);
$rows[] = array('c' => $temp);
}
$table['rows'] = $rows;
// convert data into JSON format
$jsonTable = json_encode($table);
//echo $jsonTable;
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage();
}
?>
<html>
<head>
<!--Load the Ajax API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);
function drawChart() {
// Create our data table out of JSON data loaded from server.
var data = new google.visualization.DataTable(<?=$jsonTable?>);
var options = {
title: 'My Weekly Plan',
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>
Exemplo de gráfico PHP-MySQLi-JSON-Google
<?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
*/
/* Your Database Name */
$DB_NAME = 'chart';
/* Database Host */
$DB_HOST = 'localhost';
/* Your Database User Name and Passowrd */
$DB_USER = 'root';
$DB_PASS = '123456';
/* Establish the database connection */
$mysqli = new mysqli($DB_HOST, $DB_USER, $DB_PASS, $DB_NAME);
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* select all the weekly tasks from the table googlechart */
$result = $mysqli->query('SELECT * FROM googlechart');
/*
---------------------------
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' => 'Weekly Task', 'type' => 'string'),
array('label' => 'Percentage', '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['weekly_task']);
// Values of the each slice
$temp[] = array('v' => (int) $r['percentage']);
$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: 'My Weekly Plan',
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>