php上傳斷點續傳
第一種是使用第三方的存儲空間，這種比較方便，也不需要你做什麼，直接請求介面就好啦。
第二種可以使用ftp方式進行大文件上傳，支持斷點續傳。
第三種是用php調用服務端程序來上傳，比如調用python等等開發的上傳功能
Ⅱ PHP 大文件上傳，支持斷點續傳，求具體方案、源碼或者文件上傳插件
HTTP協議里, 對斷點下載有支持.
斷點上傳單純靠PHP 是做不了的.
因為普通的瀏覽器端沒那功能.(上傳的時候 還是會整個文件編碼發送)
想實現的話 , 客戶端需要插件了,
客戶端可以使用flex實現. 服務端, PHP可以寫個webservice 接受文件.
Ⅲ 求php 以上超大文件上傳和斷點續傳伺服器的實現
現在這個時代文件存儲基本分離到了單獨的存儲服務上面,比如說阿里雲的OSS,七牛雲的雲存儲等等.考慮這些第三方服務的話,那麼你的大文件上傳和斷點續傳等功能實現只需要去對接服務商提供的API介面即可(好處就是上傳服務的壓力等因素服務商幫你抗,不好就是你得付錢給服務商),其中方案就是js-sdk只傳OSS的方式,穩定性好,只傳斷點續傳和實時瀏覽上傳進度。
如果你是大神,需要自己在伺服器實現上述功能,那麼要考慮的不僅是實現本身的需求,還得考慮伺服器是否能抗得住這樣的上傳壓力(帶寬,延時),還有存儲空間是否足夠等額外的問題.
Ⅳ php 斷點續傳怎麼做啊！
功能:支持斷點續傳的下載,能計算傳輸率,能控制傳輸率
簡易使用方法:
$object = new httpdownload();
$object->set_byfile($file)%N#H#%;//伺服器文件名,包括路徑
$object->filename = $filename;//下載另存為的文件名
$object->download();
3.源文件:
<?
class httpdownload {
var $data = null;
var $data_len = 0;
var $data_mod = 0;
var $data_type = 0;
var $data_section = 0; //section download
var $sentSize=0;
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;
var $totalsizeref = 0;
var $bandwidth = 0;
var $speed = 0;
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;
}
$this->sentSize=0;
return true;
}
function header($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);
$this->data_mod = time();
return true;
}
function download() {
if (!$this->initialize()) return false;
try {
error_log("begin download/n", 3,"/usr/local/www/apache22/LOGS/apache22_php.err");
$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;
$this->sentSize+=$size;
} else {
echo fread($res , $bufsize);
$this->bandwidth += $bufsize;
$this->sentSize+=$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;
$this->sentSize+=$size;
} else {
$this->bandwidth += $bufsize;
$this->sentSize+=$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->totalsizeref==$this->sentSize )error_log("end download/n", 3,"/usr/local/www/apache22/LOGS/apache22_php.err");
else error_log("download is canceled/n", 3,"/usr/local/www/apache22/LOGS/apache22_php.err");
if ($this->use_autoexit) exit();
//restore old status
ignore_user_abort($old_status);
set_time_limit(ini_get("max_execution_time"));
}
catch(Exception $e) {
error_log("cancel download/n".$e, 3,"/usr/local/www/apache22/LOGS/apache22_php.err");
}
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);
$this->totalsizeref = filesize($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 = $time;
}
function _auth() {
if (!isset($_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
}
}
?>
Ⅳ PHP 大文件上傳解決方案（500M以上）
針對這種問題，我想從如下幾方面著手：
1.首先還是查看環境是否支持超大容量上傳的支持，500M以上的文件通常為視頻文件；
2.即然他要上傳500M以上的文件，估計伺服器性能必定非同凡想，所以暫可不考慮伺服器硬體配置問題，但一定要考慮到網速問題，建議1000M以上出入速率，如少於這個數，你可以放棄這個方案了；
3.前面硬體都過關了，但程序也要加強了，一下上傳500M是哪種語言都不能實現的，唯一解決方案，文件切割，如迅雷下載原理一樣（採用續點上傳），分成若干小塊，然後全部上傳完畢以後，再進行文件合成。
4.至於PHP的文件切割，切割後上傳，以及文件合並，此類代碼網上有許多，樓主可查詢並選擇適合你的代碼，實現你的功能！
以上思路希望能幫到你！