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我想通过 PHP 上传文件。我希望这是一个下拉选择，而不仅仅是上传到“上传”目录。所以基本上，我希望表单有一个下拉菜单，无论我选择什么目录，它都可以。那么，我怎样才能让它有下拉菜单？

这是我的代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<?php
$max_no_img=4; // Maximum number of images value to be set here

echo "<form method=post action='' enctype='multipart/form-data'>";
echo "<table border='0' width='400' cellspacing='0' cellpadding='0' align=center>";
for($i=1; $i<=$max_no_img; $i++){
echo "<tr><td>Images $i</td><td>
<input type=file name='images[]' class='bginput'></td></tr>";
}

echo "<tr><td colspan=2 align=center><input type=submit value='Add Image'></td></tr>";
echo "</form> </table>";
while(list($key,$value) = each($_FILES['images']['name']))
{
    //echo $key;
    //echo "<br>";
    //echo $value;
    //echo "<br>";
if(!empty($value)){   // this will check if any blank field is entered
$filename =rand(1,100000).$value;    // filename stores the value

$filename=str_replace(" ","_",$filename);// Add _ inplace of blank space in file name, you can remove this line

$add = "upload/$filename";   // upload directory path is set
//echo $_FILES['images']['type'][$key];     // uncomment this line if you want to display the file type
//echo "<br>";                             // Display a line break
copy($_FILES['images']['tmp_name'][$key], $add); 
echo $add;
    //  upload the file to the server
chmod("$add",0777);                 // set permission to the file.
}
}
?>
</body>
</html>
4

1 回答 1

3

在表单中添加一些 HTML，如下所示：

Upload Directory: 
<select name="uploadDir">
  <option value="uploads">Uploads/</option>
  <option value="uploads2">Uploads2/</option>
</select>

通过将 $add 更改为：

$add = "{$_POST['uploadDir']}/$filename";

瞧！:D 一定要对目录进行某种验证，因为它非常不安全，但会给你如何做的概念；）

祝你好运！

于 2012-07-05T00:13:11.090 回答