基于所选月份的 CSV 文件输出

Question

index.php

我想根据所选月份导出数据

<div id="page-wrapper">

        <div class="container-fluid">


    <h2 class="form-signin-heading">Schedule Management</h2><hr />
    <button class="btn btn-info" type="button" id="btn-add"> <span class="glyphicon glyphicon-pencil"></span> &nbsp; Add Schedule</button>
    <button class="btn btn-info" type="button" id="btn-view"> <span class="glyphicon glyphicon-eye-open"></span> &nbsp; View Schedule</button>
    <hr />

    <div class="content-loader">
           <form method="post" action="index.php">
   Select a month <select name="months"  onchange ='this.form.submit()'>
    <option value="0"> </option>
    <option value="1">January</option>
    <option value="2">February</option>
    <option value="3">March</option>
    <option value="4">April</option>
    <option value="5">May</option>
    <option value="6">June</option>
    <option value="7">July</option>
    <option value="8">August</option>
    <option value="9">September</option>
    <option value="10">October</option>
    <option value="11">November</option>
    <option value="12">December</option>
</select>
<noscript><input type="submit" value="Submit"></noscript>

</form>
    <table cellspacing="0" width="100%" id="example" class="table table-striped table-hover table-responsive">

    <thead>
    <tr>
    <th>Sched #</th>
    <th>First Name</th>
    <th>Last Name</th>
    <th>Check In Date</th>
    <th>Check Out Date</th>
    <th>Room Rate</th>
    <th>Reservation Fee</th>
    <th>Date Paid</th>
    <th>Mode of Paymnet</th>
    <th>Status</th>
    <th>edit</th>
    <th>delete</th>

    </tr>
    </thead>
    <tbody>
    <?php
    require_once 'dbconfig.php';

    if(isset($_POST['months'])){ $months = $_POST['months']; }else { $months='';}
    $stmt = $db_con->prepare("SELECT * FROM tblguest WHERE MONTH(checkin) = '".$months."' "); 
    //this is my solution to filter my table data base on the selected months in the index.php table

    $stmt->execute();
    while($row=$stmt->fetch(PDO::FETCH_ASSOC))
    {
        ?>
        <tr>
        <td><?php echo $row['id']; ?></td>
        <td><?php echo $row['fname']; ?></td>
        <td><?php echo $row['lname']; ?></td>
        <td><?php echo $row['checkin']; ?></td>
        <td><?php echo $row['checkout']; ?></td>
        <td><?php echo $row['rrate']; ?></td>
        <td><?php echo $row['reservefee']; ?></td>
        <td><?php echo $row['datepaid']; ?></td>
        <td><?php echo $row['modepayment']; ?></td>
        <td><?php echo $row['stats']; ?></td>
        <td align="center">
        <a id="<?php echo $row['id']; ?>" class="edit-link" href="#" title="Edit">
        <img src="edit.png" width="20px" />
        </a></td>
        <td align="center"><a id="<?php echo $row['id']; ?>" class="delete-link" href="#" title="Delete">
        <img src="delete.png" width="20px" />
        </a></td>
        </tr>
        <?php
    }
    ?>
    </tbody>
    </table>
    <a class="btn" href="export.php">Export</a>
    </div>

</div>

<br />

<div class="container">



</div>

export.php

导出按钮正在工作，但我想过滤我的数据，就像我在 index.php 中的表中基于选择的月份......但现在我只能在单击导出按钮时执行整个数据在我的数据库上获得输出到 .csv

    <?php
  require_once 'dbconfig.php';


 header('Content-Type: text/csv');
 header('Content-Disposition: attachment;filename=exported-data.csv');

 $stmt = $db_con->prepare("SELECT * FROM tblguest ");

 $stmt->execute();


$filename = date('d.m.Y').'.csv';

$data = fopen($filename, 'w');


  while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
$csv = implode(',', $row) . "\n";
fwrite($data, $csv);
print_r($csv);
}

 echo "\r\n";

fclose($data);

 ?>

Answer 1

您可以使用以下代码。您首先需要根据您的条件选择数据库。

在你的 HTML 中设置一个选择下拉按钮，在 Get 请求中使用 Day 参数。

    <label>Day</label>
    <select id='lead_ids' name='lead_ids' onchange="location = this.value;">
        <option value=""> ... </option>
        <option value="search"> All </option>
        <option value="search?day=Monday">{{ Monday }}</option>
        <option value="search?day=Tuesday">{{ Tuesday }}</option>
    </select>

这样你就可以根据城市建立链接，你可以使用$_GET参数获取参数，或者你的应用程序方式。

    $q = "SELECT * FROM tblguest";
    if(!empty($_GET('day'))) {
        $q .= ' WHERE day= ' . $_GET('day');
    }
     $stmt = $db_con->prepare($q);

    $stmt->execute();
    while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
      $result[] = $row;
    }
    $file_name = "downloads/".date('dmY_His').".csv";
   // call the csv export
    exportToCsv($result, $file_name);

这样你可以添加多个不同参数的条件。

调用此函数将其导出为 CSV。

function exportToCsv($array, $file_name = "export.csv", $delimiter=";") {
        $f = fopen($file_name, "w");
        $head = array_keys($array[0]);

        fputcsv($f, $head);
        foreach ($array as $line) {
            fputcsv($f, $line);
        }

        if (file_exists($file_name))
        {
            header('Content-Description: File Transfer');
            header('Content-Type: text/csv');
            header('Content-Disposition: attachment; filename='.basename($file_name));
            header('Expires: 0');
            header('Cache-Control: must-revalidate');
            header('Pragma: public');
            header('Content-Length: ' . filesize($file_name));
            ob_clean();
            flush();
            readfile($file_name);
            exit;
        }
    }

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