Я пытаюсь создать диаграмму google из базы данных MySQL. Я ссылался на этот пост: PHP MySQL Google Chart JSON – полный пример
Я сделал все, что упоминалось в сообщении, но получаю это на веб-странице:
'Weekly Task', 'type' => 'string'), array ('label' => 'Percentage', 'type' => 'number')); $ rows = array (); while ($ r = mysql_fetch_assoc ($ sth)) {$ temp = array (); // следующая строка будет использоваться для среза круговой диаграммы $ temp [] = array ('v' => (string) $ r ['Weekly_task']); // Значения каждого среза $ temp [] = array ('v' => (int) $ r ['percent']); $ rows [] = array ('c' => $ temp); } $ table ['rows'] = $ rows; $ jsonTable = json_encode ($ table); // echo $ jsonTable; ?>
Я попробовал и проверил мою базу данных, и все кажется, что все в порядке.
Код:
<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> <?php $con=mysql_connect("localhost","root","password") or die("Failed to connect with database!!!!"); mysql_select_db("googlecharts", $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 weekly_task, percentage 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; ?> <!--this is the div that will hold the pie chart--> <div id="chart_div"></div> </body> </html> ОБНОВЛЕНИЕ Я отделил HTML и PHP коды в разные файлы. Теперь я получаю пустую веб-страницу. КОД: PHP:
<?php $con=mysql_connect("localhost","root","pass") or die("Failed to connect with database!!!!"); mysql_select_db("googlechart", $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 weekly_task, percentage 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 $jsonTable; ?>
HTML:
<?php include('new.php'); ini_set('display_errors', 1); error_reporting(E_ALL); ?> <html> <head> <!--Load the Ajax API--> <script type="text/javascript" src="https://www.google.com/jsapi"></script> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> <script type="text/javascript"> // Load the Visualization API and the piechart package. google.load('visualization', '1', {'packages':['corechart']}); // Set a callback to run when the Google Visualization API is loaded. google.setOnLoadCallback(drawChart); function drawChart() { // Create our data table out of JSON data loaded from server. var data = new google.visualization.DataTable(<?=$jsonTable?>); var options = { title: 'No. of Kills', 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>в<?php include('new.php'); ini_set('display_errors', 1); error_reporting(E_ALL); ?> <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: 'No. of Kills', 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>