Question

在我提交之前我有这个消息

注意：未定义的索引：在第15行的C：\ xampp \ htdocs \ art-legend \ 12 \ up \ up.php中上传

注意：未定义的索引：在第16行的C：\ xampp \ htdocs \ art-legend \ 12 \ up \ up.php中上传

注意：未定义的索引：在第17行的C：\ xampp \ htdocs \ art-legend \ 12 \ up \ up.php中上传

注意：未定义的索引：在第18行的C：\ xampp \ htdocs \ art-legend \ 12 \ up \ up.php中上传

注意：未定义的索引：在第19行的C：\ xampp \ htdocs \ art-legend \ 12 \ up \ up.php中上传

注意：未定义的索引：在第21行的C：\ xampp \ htdocs \ art-legend \ 12 \ up \ up.php中提交

<!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=windows-1256" />
<title>Untitled Document</title>
</head>

<body>

<?

$dir_name = dirname(__FILE__)."/uploaded/"; 


$path = $_FILES['upload']['tmp_name'];
$name = $_FILES['upload']['name'];
$size = $_FILES['upload']['size'];
$type = $_FILES['upload']['type']; 
$error = $_FILES['upload']['error'];

if($_POST['submit'])
{       
    move_uploaded_file($path,$dir_name.$name);
}
else 
{
   echo "error in uploaded";
}   

?>




<form action="<? echo $PHP_SELF;?>" method="post" enctype="multipart/form-data">

<input type="file" name="upload" />
<input type="submit" name="submit" value="upload" />
</form>
</form>
</body>
</html>

Answer 1

由于$_FILES*位于if之外，因此会在表单提交之前执行。因此，在if statement -

中添加这些内容

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

   $dir_name = dirname(__FILE__)."/uploaded/"; 
   $path = $_FILES['upload']['tmp_name'];
   $name = $_FILES['upload']['name'];
   $size = $_FILES['upload']['size'];
   $type = $_FILES['upload']['type']; 
   $error = $_FILES['upload']['error'];

   move_uploaded_file($path,$dir_name.$name);
}

无法将文件上传到我的本地主机

1 个答案: