实现图片上传不超过2M

来源：互联网发布：windows核心编程源码编辑：程序博客网时间：2024/04/30 15:50

<title>处理上传文件</title>
</head>

<body>
<?php
define('MAX_SIZE',20000);
$arr_filetype = array('image/jpeg','image/pjpeg','image/png','image/x-png','image/gif','application/octet-stream');
if ($_FILES["file"]["error"]>0){
echo "上传文件失败！";
}

else
print_r($_FILES);
{
  if(!in_array($_FILES["file"]["type"],$arr_filetype)){
   echo "<script>alert('文件格式不正确！请重新上传！');history.back();</script>";
   exit;
   }

  /*switch($_FILES["file"]["type"]){
   case 'image/jpeg':break;
   case 'image/pjpeg':break;
   case 'image/gif':break;
   case 'image/png':break;
   case 'image/x-png':break;
   default:echo "<script>alert('文件格式不正确！请重新上传！');history.back();</script>";

      } */
  else{
   if($_FILES["file"]["size"]>MAX_SIZE){
   echo "<script>alert('文件太大！请重新上传！');history.back();</script>";
   exit;
   }
  }
  if(move_uploaded_file($_FILES["file"]["tmp_name"],"d:/wamp/tmp/".time().$_FILES["file"]["name"])){
echo "文件上传成功！";
}
}

?>
</body>
</html>