upload.php ->文件上传

upload.php---文件上传?phpheader(Content-type:text/htmlcharsetutf-8)print_r($_FILES[file])

upload.php --->文件上传
<?phpheader("Content-type:text/html;charset=utf-8");print_r($_FILES['file']);
$filename=$_FILES['file']['name'];
if(!$_FILES['file']['error']){      if(move_uploaded_file($_FILES['file']['tmp_name'],"./upload/".$filename))
       {              echo  "文件上传成功";        }else{               echo  "文件上传失败";          }}else{      echo  "文件上传错误";  }?>