Question

文件移动到所需位置并在文件夹中打开，但是当我下载它时会下载损坏的文件

我已经尝试了现有帖子中的所有建议，但它似乎没有做到这一点。

<?php
$error = "error";
$con = mysqli_connect('localhost','root','') or die($error);
mysqli_select_db($con, 'folder') or die($error);

$sql = "SELECT * FROM documents";
$res = mysqli_query($con, $sql);
?>
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>

<a href="upload.php">Photo</a><br><br>
<?php

while ($row = mysqli_fetch_array($res)) {
    $id = $row['id'];
    $name = $row['name'];
    $path = $row['path'];

    echo  $id."&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;".$name."&nbsp;&nbsp;&nbsp;&nbsp;<a href='download.php?dow=$path'>Download</a><br>";
}

?>

</body>
</html>

上传代码为：

<?php
$error = "error";
$con = mysqli_connect('localhost','root','') or die($error);
mysqli_select_db($con,'servicereport') or die($error);

if (isset($_POST['submit'])) {

$doc_name = $_POST['doc_name'];
$name = $_FILES['myfile']['name'];
$tmp_name = $_FILES['myfile']['tmp_name'];

if ($name) {
    $location = "documents/$name";
    move_uploaded_file($tmp_name, $location);
    $query = mysqli_query($con,"INSERT INTO documents(name,path) VALUES ('$doc_name','$location') ");
    header('location:photos.php');

}
else

die("please select a file");
}

?>
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">  
    <label>Name</label>
    <input type="text" name="doc_name">
    <input type="file" name="myfile">
    <input type="submit" name="submit" value="Upload">
</form>
</body>
</html>

下载代码为：

<?php

include('inc/db.php');

if (isset($_GET['dow'])) {

$path = $_GET['dow'];

$res = mysqli_query("SELECT * FROM documents WHERE path = '$path' ");

header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="'.basename($path).'"');
header('Content-Transfer-Encoding: binary');
header('Connection: Keep-Alive');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length:'.sprintf("%u", filesize($path)));

set_time_limit(0);
readfile($path);

}

?>

Answer 1

请在'set_time_limit(0);'＆amp;之后添加这两行代码。在'readfile($path);'之前，因为这些功能对于删除不必要的数据或防止损坏是必要的。

找到下面的代码，这些代码将被添加：

ob_clean();
flush();

我希望，这会解决你的问题。

从服务器上的文件位置下载损坏的文件

1 个答案: