如何使用 Google API、PHP 和 MySQL 在饼图中过滤日期

Question

我已经创建了脚本来根据我的数据库中的数据生成饼图。它显示基于部门的工作时间就好了。 但是，我无法通过日期之间的过滤来显示。 请问我需要修复什么代码或如何修复代码才能进行过滤。在数据库中，我已经创建了名为 "CreatedOn" 的时间戳。

<?php   
     try {
        $query = $connection->prepare("SELECT Department, SUM(workHrs) as number FROM serviceapplication GROUP BY Department");
        $query->execute();
        $query->setFetchMode(PDO::FETCH_ASSOC);
        $data = $query->fetchAll();
    
    // var_dump($data);
    } catch (PDOException $e) {
        echo $e->getMessage();
    }
     ?> 
    <head>
    <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script> 
    <script type="text/javascript">
    google.charts.load('current', {'packages':['corechart']});
    google.charts.setOnLoadCallback(drawChart);
    
    function drawChart() {
    
        var data = google.visualization.arrayToDataTable([
          ['Department', 'Work Hours'],
          <?php
              foreach($data as $data) :     
                echo "['".$data["Department"]."', ".$data["number"]."],";
              endforeach; 
              ?>
        ]);
        
        var options = {
            backgroundColor: "none",
            title: '',
            width: 900,
            height: 500,
            pieHole: 0.5,
            colors: ['#4c325c', '#8ea5cc', '#aa579f', '#391d9d', '#fcbd9c', '#dc346c'],
        };
        
        var chart = new google.visualization.PieChart(document.getElementById('piechart'));
        
        chart.draw(data, options);
    }
    </script>
    

  <form action="" method="GET">
        <label class="text-secondary">From Date</label>
                <input type="date" name="from_date2" value="<?php if(isset($_GET['from_date2'])){ echo $_GET['from_date2']; } ?>" class="form-control">
 
         
          <label class="text-secondary">To Date</label>
                 <input type="date" name="to_date2" value="<?php if(isset($_GET['to_date2'])){ echo $_GET['to_date2']; } ?>" class="form-control">
                      
          <label class="text-secondary">Filter</label> <br>
                  <button type="submit" class="btn btn-primary">Filter</button>
             
           </form>
            <br>
            <?php 
                                    if(isset($_GET['from_date2']) && isset($_GET['to_date2']))
                                    {
                                        $from_date2 = $_GET['from_date2'];
                                        $to_date2 = $_GET['to_date2'];
    
                                        try {
                                            $query = $connection->prepare("SELECT * FROM serviceapplication WHERE CreatedOn BETWEEN '$from_date2' AND '$to_date2' ");
                                            $query->execute();
                                            $query->setFetchMode(PDO::FETCH_ASSOC);
                                            $data = $query->fetchAll();
                                            $count = 0;
    
                                        // var_dump($data);
                                        } catch (PDOException $e) {
                                            echo $e->getMessage();
                                        }
                                        foreach($data as $data) :                           
                                        ?>
                                             <div id="piechart"></div>
                                        <?php   
                                        endforeach;
                                        }
                                        ?>

Answer 1

修改代码，需要相应地设置$data数组。

过滤器 - 按列和必填字段分组（目前我按部门分组）

       try {

if (isset($_GET['from_date2']) && isset($_GET['to_date2'])) {

                                                $from_date2 = $_GET['from_date2'];

                                                $to_date2 = $_GET['to_date2'];


        //SQL injection you can handle                                  
        $query = $connection->prepare("SELECT Department, SUM(workHrs) as number  FROM serviceapplication WHERE CreatedOn BETWEEN ? AND ?  GROUP BY Department");

        //$query->bind_param("ss", $from_date2, $to_date2);

        $query->execute(array($from_date2, $to_date2));

                                   //$query->execute();
                                                    $query->setFetchMode(PDO::FETCH_ASSOC);
                                                    $data = $query->fetchAll();
                                                    $count = 0;
                                                    echo "data goes here = date filter ";print_r($data); 

        } else {
                $query = $connection->prepare("SELECT Department, SUM(workHrs) as number FROM serviceapplication GROUP BY Department");
                $query->execute();
                $query->setFetchMode(PDO::FETCH_ASSOC);
                $data = $query->fetchAll();
                echo "data goes here";print_r($data); 
        }

        } catch (PDOException $e) {
                                                    echo $e->getMessage();
        }

        ?>



        <head>
        <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script> 
        <script type="text/javascript">
        google.charts.load('current', {'packages':['corechart']});
        google.charts.setOnLoadCallback(drawChart);

        function drawChart() {

        var data = google.visualization.arrayToDataTable([
          ['Department', 'Work Hours'],
          <?php
              foreach($data as $data) :     
                echo "['".$data["Department"]."', ".$data["number"]."],";
              endforeach; 
              ?>
        ]);

        var options = {
            backgroundColor: "none",
            title: '',
            width: 900,
            height: 500,
            pieHole: 0.5,
            colors: ['#4c325c', '#8ea5cc', '#aa579f', '#391d9d', '#fcbd9c', '#dc346c'],
        };

        var chart = new google.visualization.PieChart(document.getElementById('piechart'));

        chart.draw(data, options);
        }
        </script>


        <form action="" method="GET">
        <label class="text-secondary">From Date</label>
                <input type="date" name="from_date2" value="<?php if(isset($_GET['from_date2'])){ echo $_GET['from_date2']; } ?>" class="form-control">


          <label class="text-secondary">To Date</label>
                 <input type="date" name="to_date2" value="<?php if(isset($_GET['to_date2'])){ echo $_GET['to_date2']; } ?>" class="form-control">

          <label class="text-secondary">Filter</label> <br>
                  <button type="submit" class="btn btn-primary">Filter</button>

           </form>
            <br>
        <?php
        print_r($data);

        foreach($data as $dat) :                           
                                        ?>
                                             <div id="piechart"></div>
                                        <?php   
                                        endforeach;

                                        ?>

如何使用 Google API、PHP 和 MySQL 在饼图中过滤日期

How to filter between dates from Pie Chart using Google API, PHP and MySQL

javascript

php

mysql

google-visualization