<?php
header("Content-type:text/html;charset=utf-8");
//print_r($_FILES);

$name=$_FILES['up']['name'];
$type=$_FILES['up']['type'];
$size=$_FILES['up']['size'];
$tmp=$_FILES['up']['tmp_name'];
$error=$_FILES['up']['error'];
if($error==UPLOAD_ERR_OK){
????if(move_uploaded_file($tmp,'uploads/'.$name)){
????echo"文上傳成功";
????}else{
????????echo?"文件上傳失敗";
????????}
????}else{
????????switch($error){
????????????case?1:
????????????echo"上傳的文件超過(guò)了最大值";
????????????break;
????????????case?2:
????????????echo"上傳文件的大小超過(guò)了?HTML?表單中?MAX_FILE_SIZE?選項(xiàng)指定的值。";
????????????break;
????????????case?3:
????????????echo"文件只有部分被上傳。";
????????????break;
????????????case?4:
????????????echo"沒(méi)有文件被上傳。";
????????????break;
????????????case?6:
????????????echo"找不到臨時(shí)文件夾。";
????????????break;
????????????case?7:
????????????echo"文件寫(xiě)入失敗。";
????????????break;????????????
????????????}
????}
?>

為什么我就是匹配不到錯(cuò)誤信息呢，上傳失敗不顯示任何錯(cuò)誤信息，只是提示“上傳失敗”，跟我的環(huán)境有關(guān)嗎，MAC下的MAMP PRO。用老師的原版代碼也是一樣的結(jié)果，我根本獲取不到$_FILES[MYFORM]中的['error']的值，直接print_r這個(gè)值都不顯示，什么原因？