PHP fputs无法正常工作

时间:2012-09-09 17:10:39

标签: php fopen fwrite fputs

我有以下代码来创建LOG文件。

它是在" download.php"内部实现的,这是一个强制下载的脚本,我从下载链接调用,例如:

<a href="download.php?file=filename">Filename to download</a>

下载链接位于任何其他页面,index.php或其他任何页面。在我的本地服务器上工作正常,不在我的托管(GoDaddy)工作......

$fname = "filename";

// log file name
define('LOG_FILE','logs/downloads.log');

$f = fopen(LOG_FILE, "a+");
if ($f) {
  fputs($f, date("Y.m.d | H:i:s")." | ".$_SERVER['REMOTE_ADDR']." | ".$fname."\r\n");
  fclose($f);
}

不同文件中的相同代码也完美无缺。

我认为download.php脚本中的某些内容会干扰它,如果有必要,我可以把它放在这里,但它很长......

谢谢!

download.php的完整代码:

<?php

###############################################################
# File Download 1.31
###############################################################
# Visit http://www.zubrag.com/scripts/ for updates
###############################################################
# Sample call:
#    download.php?f=phptutorial.zip
#
# Sample call (browser will try to save with new file name):
#    download.php?f=phptutorial.zip&fc=php123tutorial.zip
###############################################################

// Allow direct file download (hotlinking)?
// Empty - allow hotlinking
// If set to nonempty value (Example: example.com) will only allow downloads when referrer contains this text
define('ALLOWED_REFERRER', '');

// Download folder, i.e. folder where you keep all files for download.
// MUST end with slash (i.e. "/" )
define('BASE_DIR','mp3');

// log downloads?  true/false
define('LOG_DOWNLOADS',true);

// log file name
define('LOG_FILE','logs/downloads.log');

// Allowed extensions list in format 'extension' => 'mime type'
// If myme type is set to empty string then script will try to detect mime type 
// itself, which would only work if you have Mimetype or Fileinfo extensions
// installed on server.
$allowed_ext = array (

  // archives
  'zip' => 'application/zip',

  // documents
  'pdf' => 'application/pdf',
  'doc' => 'application/msword',
  'xls' => 'application/vnd.ms-excel',
  'ppt' => 'application/vnd.ms-powerpoint',

  // executables
  'exe' => 'application/octet-stream',

  // images
  'gif' => 'image/gif',
  'png' => 'image/png',
  'jpg' => 'image/jpeg',
  'jpeg' => 'image/jpeg',

  // audio
  'mp3' => 'audio/mpeg',
  'wav' => 'audio/x-wav',

  // video
  'mpeg' => 'video/mpeg',
  'mpg' => 'video/mpeg',
  'mpe' => 'video/mpeg',
  'mov' => 'video/quicktime',
  'avi' => 'video/x-msvideo'
);



####################################################################
###  DO NOT CHANGE BELOW
####################################################################

// If hotlinking not allowed then make hackers think there are some server problems
if (ALLOWED_REFERRER !== ''
&& (!isset($_SERVER['HTTP_REFERER']) || strpos(strtoupper($_SERVER['HTTP_REFERER']),strtoupper(ALLOWED_REFERRER)) === false)
) {
  die("Internal server error. Please contact system administrator.");
}

// Make sure program execution doesn't time out
// Set maximum script execution time in seconds (0 means no limit)
set_time_limit(0);

if (!isset($_GET['f']) || empty($_GET['f'])) {
  die("Please specify file name for download.");
}

// Nullbyte hack fix
if (strpos($_GET['f'], "\0") !== FALSE) die('');

// Get real file name.
// Remove any path info to avoid hacking by adding relative path, etc.
$fname = basename($_GET['f']);

// Check if the file exists
// Check in subfolders too
function find_file ($dirname, $fname, &$file_path) {

  $dir = opendir($dirname);

  while ($file = readdir($dir)) {
    if (empty($file_path) && $file != '.' && $file != '..') {
      if (is_dir($dirname.'/'.$file)) {
        find_file($dirname.'/'.$file, $fname, $file_path);
      }
      else {
        if (file_exists($dirname.'/'.$fname)) {
          $file_path = $dirname.'/'.$fname;
          return;
        }
      }
    }
  }

} // find_file

// get full file path (including subfolders)
$file_path = '';
find_file(BASE_DIR, $fname, $file_path);

if (!is_file($file_path)) {
  die("File does not exist. Make sure you specified correct file name."); 
}

// file size in bytes
$fsize = filesize($file_path); 

// file extension
$fext = strtolower(substr(strrchr($fname,"."),1));

// check if allowed extension
if (!array_key_exists($fext, $allowed_ext)) {
  die("Not allowed file type."); 
}

// get mime type
if ($allowed_ext[$fext] == '') {
  $mtype = '';
  // mime type is not set, get from server settings
  if (function_exists('mime_content_type')) {
    $mtype = mime_content_type($file_path);
  }
  else if (function_exists('finfo_file')) {
    $finfo = finfo_open(FILEINFO_MIME); // return mime type
    $mtype = finfo_file($finfo, $file_path);
    finfo_close($finfo);  
  }
  if ($mtype == '') {
    $mtype = "application/force-download";
  }
}
else {
  // get mime type defined by admin
  $mtype = $allowed_ext[$fext];
}

// Browser will try to save file with this filename, regardless original filename.
// You can override it if needed.

if (!isset($_GET['fc']) || empty($_GET['fc'])) {
  $asfname = $fname;
}
else {
  // remove some bad chars
  $asfname = str_replace(array('"',"'",'\\','/'), '', $_GET['fc']);
  if ($asfname === '') $asfname = 'NoName';
}

// set headers
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: $mtype");
header("Content-Disposition: attachment; filename=\"$asfname\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $fsize);

// download
// readfile($file_path);
$file = fopen($file_path,"rb");
if ($file) {
  while(!feof($file)) {
    print(fread($file, 1024*8));
    flush();
    if (connection_status()!=0) {
      fclose($file);
      die();
    }
  }
  fclose($file);
}

// log downloads
if (!LOG_DOWNLOADS) die("Not logging downloads");

$f = fopen(LOG_FILE, "a+");
if ($f) {
  fputs($f, date("Y.m.d | H:i:s")." | ".$_SERVER['REMOTE_ADDR']." | ".$fname."\r\n");
  fclose($f);
}

?>

3 个答案:

答案 0 :(得分:1)

可能有几件事是错误的:

  • 您是否拥有该文件的权限? - 确保该文件上的chmod设置允许服务器具有读/写权限。通常,它是755777或类似。
  • 文件夹/文件是否存在? - 应该相当简单,检查文件夹是否确实存在于您认为的位置。它应该与访问它的PHP脚本在
  • 让您的主机禁用与文件相关的操作吗? - 查看GoDaddy的手册和文档,或者如果其他所有方法都失败,请联系他们的支持。

帮助您确定问题的方法:

  • 启用错误报告。 - 在PHP页面顶部调用error_reporting(E_ALL);将显示脚本中可能出现的任何错误/警告/通知。像GoDaddy这样的主机通常默认禁用它们。

答案 1 :(得分:0)

您的网络服务器中是否有'logs'文件夹?如果您这样做,请检查其权限。如果它不是755,请将其设置为755.如果您没有logs文件夹,则只需创建一个。

之前我遇到过类似的问题,通常原因是服务器中不存在该目录。

修改 你能尝试一下:

file_put_contents('logs/test.log','nothing is wrong');

如果文件出现并且已成功写入,那么我建议您更新代码以使用该功能。

答案 2 :(得分:0)

您可能需要将文件chmod为755或类似的东西。