A php function to upload files

function Upload($uploaddir)
{
$tmp_name =$_FILES['file']['tmp_name']; // The temporary file name is obtained after the file is uploaded
$name =$_FILES['file'] ['name']; // The name of the uploaded file
$size =$_FILES['file']['size']; // The size of the uploaded file
$type =$_FILES['file'][' type']; // Type of uploaded file
$dir = $uploaddir.date("Ym");
@chmod($dir,0777);//Grant permissions
 @is_dir($dir) or mkdir($ dir,0777);
//chmod($dir,0777);//Grant permissions
move_uploaded_file($_FILES['file']['tmp_name'],$dir."/".$name);
$type = explode(".",$name);
$type = @$type[1];
$date = date("YmdHis");
$rename = @rename($dir."/".$name, $dir."/".$date.".".$type);
if($rename)
{
return $dir."/".$date.".".$type;
}
}
 Call:
$image = Upload('../images/photo/');