ͨʹ PHP ȫ $_FILES,ԴӿͻԶ̷ϴļ,һǱ input name,ڶ± "name", "type", "size", "tmp_name"  "error"

$_FILES["file"]["name"] - ϴļ
$_FILES["file"]["type"] - ϴļ
$_FILES["file"]["size"] - ϴļĴСֽڼ
$_FILES["file"]["tmp_name"] - 洢ڷļʱ
$_FILES["file"]["error"] - ļϴµĴ
һַǳļϴʽڰȫĿǣӦйʲôûȨϴļơ