Question

当我单击报告时，我能够获取整个表格数据，但是当我将帖子分配给变量时，它不会生成单人报告。我无法找到错误所在。

export.php

  <?php 
      $host = "localhost"; // MySQL host name eg. localhost
      $user = "root"; // MySQL user. eg. root ( if your on localserver)
      $password = ""; // MySQL user password  (if password is not set for your root user then keep it empty )
      $database = "demo"; // MySQL Database name

      $con = new mysqli($host, $user, $password, $database);

      // Check connection
      if ($con->connect_error) {
        die("Connection failed: " . $con->connect_error);
      }
      $id = $_POST['id']; // missing here
      $query ="SELECT id,attendants_name,task,stat, count(*)
      FROM allotted  WHERE id='$id'
      GROUP BY stat ";

      if (!$result = mysqli_query($con, $query)) {
        exit(mysqli_error($con));
      }
      $users = array();
      if (mysqli_num_rows($result) > 0) {
        while ($row = mysqli_fetch_assoc($result)) {
          $users[] = $row;
        }
      }

      header('Content-Type: text/csv; charset=utf-8');
      header('Content-Disposition: attachment; filename=Users.csv');
      $output = fopen('php://output', 'w');
      fputcsv($output, array('Task Id', 'Name','Task','Status','No. of Tasks'));

      if (count($users) > 0) {
        foreach ($users as $row) {
          fputcsv($output, $row);
        }
      }
    ?>

report.php

echo "<a href='#' onclick='Export()' style='color:#fff;' class='btn btn-task bt1'> Report </a> ";
function Export() {
  var conf = confirm("Export users to CSV?");
  if(conf == true) {
    window.open("export.php", '_blank');
  }
}

上面提到了报告代码。我想获取具有从数据库中获取的值的单个用户的报告。我不想在查询中提供id ='1'之类的东西。我希望在搜索人的ID时动态地产生价值。

Answer 1

您正在从发布请求中获取$ id，但是我看不到您正在发送发布请求。将ID附加到URL并发送到export.php并使用$ _GET获取。
请参见下面的示例

report.php

// attach id with onlick function like below (dynamically)
echo "<a href='#' onclick='Export(id)' style='color:#fff;' class='btn btn-task bt1'> Report </a> ";

function Export(id) {
  var conf = confirm("Export users to CSV?");
  if(conf == true) {
    window.open("export.php?id=" + id, '_blank'); //attach the id with URL (GET method)
  }
}

export.php

<?php

$host = "localhost"; // MySQL host name eg. localhost
$user = "root"; // MySQL user. eg. root ( if your on localserver)
$password = ""; // MySQL user password  (if password is not set for your 
root user then keep it empty )
$database = "demo"; // MySQL Database name

$con = new mysqli($host, $user, $password, $database);
if ($con->connect_error) {
  die("Connection failed: " . $con->connect_error);
}
$id = $_GET['id']; // retrieve URL binded id from $_GET method
$query ="SELECT id,attendants_name,task,stat, count(*)
FROM allotted  WHERE id='$id'
GROUP BY stat ";

if (!$result = mysqli_query($con, $query)) {
  exit(mysqli_error($con));
}
$users = array();
if (mysqli_num_rows($result) > 0) {
  while ($row = mysqli_fetch_assoc($result)) {
    $users[] = $row;
  }
}

header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=Users.csv');
$output = fopen('php://output', 'w');
fputcsv($output, array('Task Id', 'Name','Task','Status','No. of Tasks'));

if (count($users) > 0) {
  foreach ($users as $row) {
    fputcsv($output, $row);
  }
}
?>

根据ID搜索生成单个用户的报告

1 个答案: