判斷暫存檔有無存取成功

<?

$up_dir = "./upload/";
$to = iconv("UTF-8","BIG5",$_FILES["myfile"]["name"]);
$up_file = $up_dir.$to;

// $up_file = $up_dir.$to = iconv("UTF-8","BIG5",$FILES["myfile"]["name"]);

// 判斷暫存檔有無存取成功
if(move_upload_file($_FILES["myfile"]["tmp_name"],$up_file)){
}

?>