PHP支持拖拽和裁剪的一款上传插件：zyupload。在js里面可以自定义高度和宽度，类型，远程上传地址等。
远程上传up.php
$uploaddir = 'uploads/';
$name = $_FILES['file']['name'];
$uploadfile = $uploaddir . $name;
$type = strtolower(substr(strrchr($name, '.'), 1));
//获取文件类型
if (!in_array($type, $typeArr)) {
echo "请上传jpg,png或gif类型的图片！";
exit;
}
print "<pre>";
if (move_uploaded_file($_FILES['file']['tmp_name'], $uploaddir . $_FILES['file']['name'])) {
print "File is valid, and was successfully uploaded. Here's some more debugging info:\n";
print_r($_FILES);
} else {
print "Possible file upload attack! Here's some debugging info:\n";
print_r($_FILES);
}
print "</pre>";
