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我已经上传图像到MySQL数据库。我正在尝试下载保存的文件。但我的脚本显示以下警告:PHP文件不下载
警告:不能更改头信息 - 已经
发送了头我也测试:Content-Disposition: attachment
。但它仍然不起作用。文件不下载,而是打印文件:
这里是我的代码:
$query = "SELECT * FROM Upload";
$result = mysqli_query ($con, $query)
or die ("Couldn't execute SELECT query: ". mysqli_error($con));
$nrows = mysqli_num_rows($result);
echo '<table>
<tr>
<td>Id</td>
<td>Name</td>
<td>Type</td>
<td>Size (MB)</td>
</tr>';
$selfpg = $_SERVER['PHP_SELF'];
while($row = mysqli_fetch_assoc($result)){
extract($row);
echo "<tr>
<td>$Id</td>
<td>$Name</td>
<td>$Type</td>
<td>$SizeMB</td>
<td> <a href='$selfpg?id=$Id'> Download </a> </td>
</tr>";
}
echo '</table>';
//----------------------------------------------------------------------
if (isset($_GET['id'])){
mysqli_data_seek($result,0);
$row = mysqli_fetch_assoc($result);
extract($row);
header("Content-Type: ". $Type);
header("Content-Length: ". $SizeMB);
header("Content-Disposition: inline; filename= ". $Name);
echo $Content;
}
else{
echo "<br>No id received to download a file</br>";
}
想要下载图片,或将其包含到网页上? – slax0r
我想下载它。 – Amali