PHP MySQL的谷歌图表JSON – 完整的例子
我search了很多，find一个很好的例子来生成一个使用MySQL表格数据作为数据源的Google图表。 我search了几天，并意识到有几个例子可用于生成一个谷歌图表（饼，栏，列，表）使用PHP和MySQL的组合。 我终于设法得到一个例子工作。
我以前从StackOverflow收到很多帮助，所以这次我会返回一些。
我有两个例子。 一个使用Ajax，另一个不使用。 今天，我只会展示非Ajax的例子。
用法：
要求：PHP，Apache和MySQL
安装：
---通过使用phpMyAdmin创build一个数据库，并将其命名为“图表”
---通过使用phpMyAdmin创build一个表，并将其命名为“googlechart”并使之成为
肯定表只有两列，因为我已经使用了两列。 然而，
你可以使用多于2列，如果你喜欢，但你必须改变
代码一点点
---如下指定列名称：“weekly_task”和“百分比”
---将一些数据插入表中
---对于百分比列只能使用一个数字
---------------------------------
示例数据：表（googlechart）
---------------------------------
weekly_task百分比
----------- ----------
睡30
看电影10
工作40
练习20
PHP-MySQL-JSON-Google图表示例：
<?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 */ $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' => '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> PHP-PDO-JSON-MySQL-Google图表示例：
<?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>
PHP-MySQLi-JSON-Google图表示例
<?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>
有些人可能在本地或在服务器上遇到此错误：
syntax error var data = new google.visualization.DataTable(<?=$jsonTable?>);
这意味着他们的环境不支持短标签，而是使用这个解决scheme：
<?php echo $jsonTable; ?>
而一切都应该正常工作！
使用这个，它真的工作：
data.addColumn否您的密钥，您可以添加更多列或删除
<?php $con=mysql_connect("localhost","USername","Password") or die("Failed to connect with database!!!!"); mysql_select_db("Database Name", $con); // The Chart table contain two fields: Weekly_task and percentage //this example will display a pie chart.if u need other charts such as Bar chart, u will need to change little bit to make work with bar chart and others charts $sth = mysql_query("SELECT * FROM chart"); while($r = mysql_fetch_assoc($sth)) { $arr2=array_keys($r); $arr1=array_values($r); } for($i=0;$i<count($arr1);$i++) { $chart_array[$i]=array((string)$arr2[$i],intval($arr1[$i])); } echo "<pre>"; $data=json_encode($chart_array); ?> <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(); data.addColumn("string", "YEAR"); data.addColumn("number", "NO of record"); data.addRows(<?php $data ?>); ]); 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 ur div ID var chart = new google.visualization.PieChart(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>
你可以做到这一点更简单的方法。 100％的作品，你想要的
<?php $servername = "localhost"; $username = "root"; $password = ""; //your database password $dbname = "demo"; //your database name $con = new mysqli($servername, $username, $password, $dbname); if ($con->connect_error) { die("Connection failed: " . $con->connect_error); } else { //echo ("Connect Successfully"); } $query = "SELECT Date_time, Tempout FROM alarm_value"; // select column $aresult = $con->query($query); ?> <!DOCTYPE html> <html> <head> <title>Massive Electronics</title> <script type="text/javascript" src="loder.js"></script> <script type="text/javascript"> google.charts.load('current', {'packages':['corechart']}); google.charts.setOnLoadCallback(drawChart); function drawChart(){ var data = new google.visualization.DataTable(); var data = google.visualization.arrayToDataTable([ ['Date_time','Tempout'], <?php while($row = mysqli_fetch_assoc($aresult)){ echo "['".$row["Date_time"]."', ".$row["Tempout"]."],"; } ?> ]); var options = { title: 'Date_time Vs Room Out Temp', curveType: 'function', legend: { position: 'bottom' } }; var chart = new google.visualization.AreaChart(document.getElementById('areachart')); chart.draw(data, options); } </script> </head> <body> <div id="areachart" style="width: 900px; height: 400px"></div> </body> </html>
