PHP练习7 文件上传

本实验实现上传文件到服务器，并通过页面呈现目录下文件。

1. upload.html

  


Upload new news files

  
  Upload this file: 
  

2.  upload.php  服务器上创建/uploads目录，提交按钮上传文件保存在里面

  


Uploading file...
 0)
  {
    echo 'Problem: ';
    switch ($_FILES['userfile']['error'])
    {
      case 1:	echo 'File exceeded upload_max_filesize';
	  			break;
      case 2:	echo 'File exceeded max_file_size';
	  			break;
      case 3:	echo 'File only partially uploaded';
	  			break;
      case 4:	echo 'No file uploaded';
	  			break;
	  case 6:   echo 'Cannot upload file: No temp directory specified.';
	  			break;
	  case 7:   echo 'Upload failed: Cannot write to disk.';
	  			break;
    }
    exit;
  }

  // Does the file have the right MIME type?
  if ($_FILES['userfile']['type'] != 'text/plain')
  {
    echo 'Problem: file is not plain text';
    exit;
  }

  // put the file where we'd like it
  $upfile = '/uploads/'.$_FILES['userfile']['name'];

  if (is_uploaded_file($_FILES['userfile']['tmp_name'])) 
  {
     if (!move_uploaded_file($_FILES['userfile']['tmp_name'], $upfile))
     {
        echo 'Problem: Could not move file to destination directory';
        exit;
     }


  } 
  else 
  {
    echo 'Problem: Possible file upload attack. Filename: ';
    echo $_FILES['userfile']['name'];
    exit;
  }


  echo 'File uploaded successfully

'; 
  echo 'File name: '.$_FILES['userfile']['name'];

?>

 

[root@mail uploads]# pwd
/uploads
[root@mail uploads]# ls -l
total 4
-rw-r--r-- 1 apache apache 12 Oct  8 22:42 file1.txt

 3. 使用dir类显示目录列表

  


Browsing
Handle is $dir->handle
";
  echo "
Upload directory is $dir->path
";
  echo '
Directory Listing:
';
  
  while(false !== ($file = $dir->read()))
    //strip out the two entries of . and ..
  	if($file != "." && $file != "..")
  	{
		echo ''.$file.'
';
  	}
  echo '
';
  $dir->close();
?>