在Pdf中按行导出表数据

Question

单击按钮后，我正在导出完整的表格信息，它的工作正常。...

现在我在每行中添加了按钮，现在我单击了第一行中的按钮后，我只想导出pdf中的第一行详细信息。我在这里做错了吗？

<?php

$result = mysqli_query($con,"SELECT * FROM orders");

echo "<table border='1'>
<tr>
<th>order</th>
<th>payment</th>
<th>download</th>
</tr>";

while($row = mysqli_fetch_array($result))
{
$id = $row['id'];
echo "<tr>";
echo "<td>" . $row['order_id'] . "</td>";
echo "<td>" . $row['payment_type'] . "</td>";
echo "<td><button><a href ='index.php?id=<?php echo $row['id']?>'>Download</a></button></td>";

echo "</tr>";
}
echo "</table>";

?>

更新

我遇到如下语法错误，但是我检查了所有与语法错误有关的内容，无法找到行中语法错误的位置：

echo "<td><button><a href ='index.php?id=<?php echo $row['id']?>'>Download</a></button></td>";

  

PHP语法检查：解析错误：语法错误，意外的''   （T_ENCAPSED_AND_WHITESPACE），期望为“-”或标识符（T_STRING）或   变量（T_VARIABLE）或数字（T_NUM_STRING）

Answer 1

您在回显函数中使用<?php ?>标签，这将无法工作。

echo "<td><button><a href ='index.php?id=<?php echo $row['id']?>'>Download</a></button></td>";

将其更改为此：

echo "<td><button><a href='index.php?id=" . $row['id'] . "'>Download</a></button></td>";

Answer 2

这是因为要将PHP标记放入echo语句中。您已经在PHP环境中，无需再打开另一个。仅在将原始HTML直接硬编码到输出中并且想要在其中添加PHP片段时，才使用这些标记。这是相反的情况。

更改

echo "<td><button><a href ='index.php?id=<?php echo $row['id']?>'>Download</a></button></td>";

到

echo "<td><button><a href ='index.php?id=$row['id']'>Download</a></button></td>";

或

echo "<td><button><a href ='index.php?id=".$row['id']."'>Download</a></button></td>";

Answer 3

include('database.php');
$database = new Database();
$result = $database->runQuery("SELECT order_id, payment_type FROM orders  where id = '".$_REQUEST['id']."'");
$header = $database->runQuery("SELECT UCASE(`COLUMN_NAME`)
FROM `INFORMATION_SCHEMA`.`COLUMNS`
WHERE `TABLE_SCHEMA`='do_management4'
AND `TABLE_NAME`='orders'
and `COLUMN_NAME` in ('order_id','payment_type')");
require('fpdf/fpdf.php');
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
foreach($header as $heading) {
    foreach($heading as $column_heading)
        $pdf->Cell(95,12,$column_heading,1);
}
if($result)
$row    =   $result[0]; //here you can get the result and change according to row variable either in array or std object
//foreach($result as $row) {
    $pdf->Ln();
    foreach($row as $column)
        $pdf->Cell(95,12,$column,1);
//}
$pdf->Output();