                        课程
                    
                        /后端开发
                        
                            /PHP
                        
                        /PHP实现文件上传与下载

上传执行成功了，却报一个警告错误，求救

<?php

header('content-type:text/html;charset=utf-8');

//1、通过$_FILES文件上传变量来接受上传文件信息

$fileInfo = $_FILES['myFile'];

$fileName = $fileInfo['name'];

$type = $fileInfo['type'];

$tmp_name = $fileInfo['tmp_name'];

$size = $fileInfo['size'];

$error = $fileInfo['error'];

//2、判断下错误号，只有为0或者是UPLOAD_ERR_OK，说明没有错误发生，上传成功

if ($error == UPLOAD_ERR_OK) {

if (move_uploaded_file($tmp_name, 'uploads/' . $fileName)) {

echo '文件' . $fileName . '上传成功';

} else {

echo '文件' . $fileName . '上传失败';

}

} else {

//匹配错误信息

switch ($error) {

case 1:

echo '上传文件超过了PHP配置文件中upload_max_filesize选项的值';

break;

case 2:

echo '超过了表单MAX_FILE_SIZE限制的大小';

break;

case 3:

echo '文件部分被上传';

break;

case 4:

echo '没有选择上传文件';

break;

case 6:

echo '没有找到临时目录';

break;

case 7:

case 8:

echo '系统错误';

break;

}

//将服务器上的临时文件移动到指定目录下

copy($tmp_name, 'uploads/' . $fileName);

//报的警告错误为：文件nan.jpg上传成功
Warning: copy(C:\Users\yechao\AppData\Local\Temp\php3D5F.tmp): failed to open stream: No such file or directory in N:\phpstudy_pro\WWW\cgwuli\upload\doAction.php on line 44