这是为什么我明明用的是

<?php 

print_r($_FILES);

$filename=$_FILES['myFile']['name'];

$type=$_FILES['myFile']['type'];

$tmp_name=$_FILES['myFile']['tmp_name'];

$size=$_FILES['myFile']['size'];

$error=$_FILES['myFile']['error'];

copy($tmp_name,"teat0/".$filename);