ممنون منم به یه همچین چیز نیاز داشتم حالا میشه در مورد نحوه استفادش یه توضیح بدید
نحوه استفاده از اش که خیلی سادس، این تابع رو تو یه فایلی قرار می دی، مثلا dl.php بعد تو فایل اصلیت فایل dl.php رو include می کنی و در آخر تابع dl_file_resumable(); رو با مسیر فایل مورد نظر فراخونی می کنی.
مثلا اگه فایل zar.rar با باقی فایلها تو یه شاخه باشه، کد
dl_file_resumable("zar.rar");
باعث شروع دانلود می شه.
فكر كنم مشكل داره
function
dl_file_resumable
صدا زدم و به متغير $file آدرس يه فايل رو دادم اما به جاي دانلود فايل انگار فايل zip رو با notpad باز كني صفحه رو نشون داد
والا من خودم الان دوباره تست کردم مشکلی نداشت.
با لوکال هسات تست کردم.
php 5.2.8
apache 2.2.11
اگه باز مشکلت رفع نشد، کد زیر رو هم امتحان کن
<?
/**
@author Nguyen Quoc Bao <quocbao.coder@gmail.com>
@version 1.3
@desc A simple object for processing download operation , support section downloading
Please send me an email if you find some bug or it doesn't work with download manager.
I've tested it with
- Reget
- FDM
- FlashGet
- GetRight
- DAP
@copyright It's free as long as you keep this header .
@example
1: File Download
$object = new downloader;
$object->set_byfile($filename); //Download from a file
$object->use_resume = true; //Enable Resume Mode
$object->download(); //Download File
2: Data Download
$object = new downloader;
$object->set_bydata($data); //Download from php data
$object->use_resume = true; //Enable Resume Mode
$object->set_filename($filename); //Set download name
$object->set_mime($mime); //File MIME (Default: application/otect-stream)
$object->download(); //Download File
3: Manual Download
$object = new downloader;
$object->set_filename($filename);
$object->download_ex($size);
//output your data here , remember to use $this->seek_start and $this->seek_end value :)
**/
class httpdownload {
var $data = null;
var $data_len = 0;
var $data_mod = 0;
var $data_type = 0;
var $data_section = 0; //section download
/**
* @var ObjectHandler
**/
var $handler = array('auth' => null);
var $use_resume = true;
var $use_autoexit = false;
var $use_auth = false;
var $filename = null;
var $mime = null;
var $bufsize = 2048;
var $seek_start = 0;
var $seek_end = -1;
/**
* Total bandwidth has been used for this download
* @var int
*/
var $bandwidth = 0;
/**
* Speed limit
* @var float
*/
var $speed = 0;
/*-------------------
| Download Function |
-------------------*/
/**
* Check authentication and get seek position
* @return bool
**/
function initialize() {
global $HTTP_SERVER_VARS;
if ($this->use_auth) //use authentication
{
if (!$this->_auth()) //no authentication
{
header('WWW-Authenticate: Basic realm="Please enter your username and password"');
header('HTTP/1.0 401 Unauthorized');
header('status: 401 Unauthorized');
if ($this->use_autoexit) exit();
return false;
}
}
if ($this->mime == null) $this->mime = "application/octet-stream"; //default mime
if (isset($_SERVER['HTTP_RANGE']) || isset($HTTP_SERVER_VARS['HTTP_RANGE']))
{
if (isset($HTTP_SERVER_VARS['HTTP_RANGE'])) $seek_range = substr($HTTP_SERVER_VARS['HTTP_RANGE'] , strlen('bytes='));
else $seek_range = substr($_SERVER['HTTP_RANGE'] , strlen('bytes='));
$range = explode('-',$seek_range);
if ($range[0] > 0)
{
$this->seek_start = intval($range[0]);
}
if ($range[1] > 0) $this->seek_end = intval($range[1]);
else $this->seek_end = -1;
if (!$this->use_resume)
{
$this->seek_start = 0;
//header("HTTP/1.0 404 Bad Request");
//header("Status: 400 Bad Request");
//exit;
//return false;
}
else
{
$this->data_section = 1;
}
}
else
{
$this->seek_start = 0;
$this->seek_end = -1;
}
return true;
}
/**
* Send download information header
**/
function header($size,$seek_start=null,$seek_end=null) {
header('Content-type: ' . $this->mime);
header('Content-Disposition: attachment; filename="' . $this->filename . '"');
header('Last-Modified: ' . date('D, d M Y H:i:s \G\M\T' , $this->data_mod));
if ($this->data_section && $this->use_resume)
{
header("HTTP/1.0 206 Partial Content");
header("Status: 206 Partial Content");
header('Accept-Ranges: bytes');
header("Content-Range: bytes $seek_start-$seek_end/$size");
header("Content-Length: " . ($seek_end - $seek_start + 1));
}
else
{
header("Content-Length: $size");
}
}
function download_ex($size)
{
if (!$this->initialize()) return false;
ignore_user_abort(true);
//Use seek end here
if ($this->seek_start > ($size - 1)) $this->seek_start = 0;
if ($this->seek_end <= 0) $this->seek_end = $size - 1;
$this->header($size,$seek,$this->seek_end);
$this->data_mod = time();
return true;
}
/**
* Start download
* @return bool
**/
function download() {
if (!$this->initialize()) return false;
$seek = $this->seek_start;
$speed = $this->speed;
$bufsize = $this->bufsize;
$packet = 1;
//do some clean up
@ob_end_clean();
$old_status = ignore_user_abort(true);
@set_time_limit(0);
$this->bandwidth = 0;
$size = $this->data_len;
if ($this->data_type == 0) //download from a file
{
$size = filesize($this->data);
if ($seek > ($size - 1)) $seek = 0;
if ($this->filename == null) $this->filename = basename($this->data);
$res = fopen($this->data,'rb');
if ($seek) fseek($res , $seek);
if ($this->seek_end < $seek) $this->seek_end = $size - 1;
$this->header($size,$seek,$this->seek_end); //always use the last seek
$size = $this->seek_end - $seek + 1;
while (!(connection_aborted() || connection_status() == 1) && $size > 0)
{
if ($size < $bufsize)
{
echo fread($res , $size);
$this->bandwidth += $size;
}
else
{
echo fread($res , $bufsize);
$this->bandwidth += $bufsize;
}
$size -= $bufsize;
flush();
if ($speed > 0 && ($this->bandwidth > $speed*$packet*1024))
{
sleep(1);
$packet++;
}
}
fclose($res);
}
elseif ($this->data_type == 1) //download from a string
{
if ($seek > ($size - 1)) $seek = 0;
if ($this->seek_end < $seek) $this->seek_end = $this->data_len - 1;
$this->data = substr($this->data , $seek , $this->seek_end - $seek + 1);
if ($this->filename == null) $this->filename = time();
$size = strlen($this->data);
$this->header($this->data_len,$seek,$this->seek_end);
while (!connection_aborted() && $size > 0) {
if ($size < $bufsize)
{
$this->bandwidth += $size;
}
else
{
$this->bandwidth += $bufsize;
}
echo substr($this->data , 0 , $bufsize);
$this->data = substr($this->data , $bufsize);
$size -= $bufsize;
flush();
if ($speed > 0 && ($this->bandwidth > $speed*$packet*1024))
{
sleep(1);
$packet++;
}
}
} else if ($this->data_type == 2) {
//just send a redirect header
header('location: ' . $this->data);
}
if ($this->use_autoexit) exit();
//restore old status
ignore_user_abort($old_status);
set_time_limit(ini_get("max_execution_time"));
return true;
}
function set_byfile($dir) {
if (is_readable($dir) && is_file($dir)) {
$this->data_len = 0;
$this->data = $dir;
$this->data_type = 0;
$this->data_mod = filemtime($dir);
return true;
} else return false;
}
function set_bydata($data) {
if ($data == '') return false;
$this->data = $data;
$this->data_len = strlen($data);
$this->data_type = 1;
$this->data_mod = time();
return true;
}
function set_byurl($data) {
$this->data = $data;
$this->data_len = 0;
$this->data_type = 2;
return true;
}
function set_lastmodtime($time) {
$time = intval($time);
if ($time <= 0) $time = time();
$this->data_mod = $time;
}
/**
* Check authentication
* @return bool
**/
function _auth() {
if (!isset($_SERVER['PHP_AUTH_USER'])) return false;
if (isset($this->handler['auth']) && function_exists($this->handler['auth']))
{
return $this->handler['auth']('auth' , $_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW']);
}
else return true; //you must use a handler
}
}
?>
مثال برای کد بالا:
<?
$FILENAME = ""; //SET YOUR FILE HERE
if (!$FILENAME || !file_exists($FILENAME)) {
echo "Please set your target file \$FILENAME on line 2\n";
exit();
}
include_once "class.httpdownload.php";
$object = new httpdownload;
$bandwidth = @intval(implode('',file('bandwidth.txt'))) / 1024;
if ($bandwidth > 1024)
{
$bandwidth = round($bandwidth / 1024 , 2);
$bandwidth .= " MB";
}
else
{
$bandwidth .= " KB";
}
switch (@$_GET['download']) {
case 'resume_speed':
case 'noresume_speed':
case 'resume':
case 'noresume':
$object->set_byfile($FILENAME);
if ($_GET['download'] == 'noresume' || $_GET['download'] == 'noresume_speed') $object->use_resume = false;
if ($_GET['download'] == 'resume_speed' || $_GET['download'] == 'noresume_speed' ) $object->speed = 100;
$object->download();
break;
case 'data':
case 'dataresume':
$data = implode('' , file($FILENAME));
$object->set_bydata($data);
if ($_SERVER['download'] != 'dataresume') $object->use_resume = false;
$object->filename = basename($FILENAME);
$object->download();
break;
case 'auth':
$object->set_byfile($FILENAME);
$object->use_auth = true;
$object->handler['auth'] = "test_auth";
$object->download();
break;
case 'url':
$object->set_byurl('http://www.php.net/get/php_manual_chm.zip/from/cr.php.net/mirror');
$object->download();
break;
}
if ($object->bandwidth > 0)
{
error_reporting(E_NONE);
$b = intval(implode('',file('bandwidth.txt'))) + $object->bandwidth;
$f = fopen('bandwidth.txt','wb');
fwrite($f,$b);
fclose($f);
exit;
}
function test_auth($user,$pass) { //test authentication function
if ($user == 'user' && $pass == 'pass') return true;
return false;
}
?>
<head>
<style>
<!--
body { font-family: Tahoma; font-size: 12px }
a { color: #FF0000 }
-->
</style>
</head>
<title>HTTPDownload example</title>
<h2><font color="navy">HttpDownload</font></h2>Select a link and try it with a download manager (like <a href="http://reget.com">Reget</a>) .<br><br>
Total bandwidth used : <B><?=$bandwidth?></B>
<br><br>
<a href="test.php?download=noresume">Download file</a><br>
<a href="test.php?download=noresume_speed">Download file (speed limit 100 kbs)</a><br>
<a href="test.php?download=resume">Download file with resume</a><br>
<a href="test.php?download=resume_speed">Download file with resume (speed limit 100 kbs) </a><br>
<a href="test.php?download=data">Download file data (May slow)</a><br>
<a href="test.php?download=dataresume">Download file data with resume (May slow)</a><br>
<a href="test.php?download=auth">Authentication download (user/pass)</a><br>
<a href="test.php?download=url">URL Download (simple redirect)</a><br>
<p><font size="1"><font color="#808080">( Click
<a href="http://en.vietapi.com/wiki/index.php/PHP:_HttpDownload">
<font color="black">here</font></a><font color=""> to view class
information )</font></p>
منبع کلد بالایی
http://www.phpclasses.org/package/2221-PHP-Server-files-for-downloading-with-resume-support.html