php实现上传与下载文件的一段代码

文件上传下载-bbs.it-home.org


enctype="multipart/form-data">Filename:



$dir = 'upload/';if(is_dir($dir)) {   if ($dh = opendir($dir)) {   while (($file = readdir($dh)) !== false) {       if($file!="." && $file!="..") {       echo "";     }  }  closedir($dh);}}?>






".$file."

2，上传文件源代码 upload_file.php

/**
* 文件上传与下载
* edit bbs.it-home.org
*/
  if ($_FILES["file"]["error"] > 0)
  {
  echo "Return Code: " . $_FILES["file"]["error"] . "";
  }
  else
  {
  echo "Upload: " . $_FILES["file"]["name"] . "";
  echo "Type: " . $_FILES["file"]["type"] . "";
  echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb";
  echo "Temp file: " . $_FILES["file"]["tmp_name"] . "";

  if (file_exists("upload/" . $_FILES["file"]["name"]))
  {
  echo $_FILES["file"]["name"] . " already exists. ";
  }
  else
  {
  move_uploaded_file($_FILES["file"]["tmp_name"],
  "upload/" . $_FILES["file"]["name"]);
  echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
  }
  }
  //下载文件
  header('HTTP/1.1 301 Moved Permanently');
  header('Location:files.php');
?>