if($_FILES['file']['error'] > 0){
echo '!problem:';
switch($_FILES['file']['error'])
{
case 1: echo '文件大小超过服务器限制';
break;
case 2: echo '文件太大！';
break;
case 3: echo '文件只加载了一部分！';
break;
case 4: echo '文件加载失败！';
break;
}

exit;
}
if($_FILES['file']['size'] > 1000000){
echo '文件过大！';
exit;
}
if($_FILES['file']['type']!='image/jpeg' && $_FILES['file']['type']!='image/gif'){
echo '文件不是JPG或者GIF图片！';
exit;
}
$today = date("YmdHis");
$filetype = $_FILES['file']['type'];
if($filetype == 'image/jpeg'){
$type = '.jpg';
}
if($filetype == 'image/gif'){
$type = '.gif';
}
$upfile = 'upfile/' . $today . $type;
if(is_uploaded_file($_FILES['file']['tmp_name']))
{
if(!move_uploaded_file($_FILES['file']['tmp_name'], $upfile))
{
echo '移动文件失败！';
exit;
}
}
else
{
echo 'problem!';
exit;
}
echo '

success!

';
$dirr = 'upfile/';
$dir = opendir($dirr);
echo $dirr . '--Listing:

';
while($file = readdir($dir)){
echo "
• $file
";
}
echo '