Я много искал, чтобы найти хороший пример для создания диаграммы Google с использованием данных таблицы MySQL в качестве источника данных. Я искал пару дней и понял, что имеется несколько примеров для создания диаграммы Google (pie, bar, column, table) с использованием комбинации PHP и MySQL. Наконец, мне удалось запустить один пример.
Я ранее получал много помощи от StackOverflow, поэтому на этот раз я верну некоторые.
У меня есть два примера; один использует Ajax, а другой – нет. Сегодня я покажу только пример, отличный от Ajax.
Применение:
Требования: PHP, Apache и MySQL
Монтаж:
--- Создайте базу данных с помощью phpMyAdmin и назовите ее «диаграммой»,
--- Создайте таблицу с помощью phpMyAdmin и назовите ее «googlechart» и сделайте
Уверенная таблица имеет только два столбца, поскольку я использовал два столбца. Однако,
вы можете использовать более двух столбцов, если хотите, но вы должны изменить
код немного для этого
--- Укажите имена столбцов следующим образом: "weekly_task" и "percent"
--- Вставьте некоторые данные в таблицу
--- Для столбца процента используйте только номер
---------------------------------
Примеры данных: Таблица (googlechart)
---------------------------------
weekly_task процент
----------- ----------
Сон 30
Просмотр фильма 10
работа 40
Упражнение 20
Пример 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 */ $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> Пример 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>
Пример 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>
Некоторые могут столкнуться с этой ошибкой либо локально, либо на сервере:
syntax error var data = new google.visualization.DataTable(<?=$jsonTable?>);
Это означает, что в их среде не поддерживаются короткие теги, решение заключается в том, чтобы использовать это вместо этого:
<?php echo $jsonTable; ?>
И все должно работать нормально!
используйте это, он действительно работает:
data.addColumn no вашего ключа, вы можете добавить больше столбцов или удалить
<?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>
Вы можете сделать это более простым способом. И 100% работает, что вы хотите
<?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>