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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#%;//服務器文件名,包括路徑
$object-filename = $filename;//下載另存為的文件名
$object-download();
3.源文件:
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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
}
}
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php中文件斷點上傳怎麼實現
同ls。
你把斷點上傳的功能做成ActiveX放在頁面上，提示需要斷點上下載的用戶安裝ActiveX。你可以去後盾，那裡我覺得挺好的，只是個人認為，他那裡教學質量挺好的！不喜勿噴！
phpstorm 怎麼斷點調試thinkphp
php–xdebug設置 —phpstorm 斷點調試方法如下：
配置好了之後 可以使用 ide的斷點調試
Xdebug在PHP中的安裝配置涉及php.ini配置文件的修改。
1 、首先需要下載Xdebug，根據安裝的PHP版本，選擇合適的Xdebug版本，
2 、 安裝Xdebug
將下載的php_xdebug-2.1.0-5.3-vc6.dll複製到PHP安裝目錄下的ext目錄，ext目錄專門用來存放PHP擴展庫DLL文件。
3、 配置php.ini
安裝Xdebug的最後一步就是配置php.ini文件，打開C:\php目錄下的php.ini配置文件，在末尾添加
[xdebug]
zend_extension = “c:/wamp/bin/php/php5.4.3/ext/php_xdebug-2.2.3-5.4-vc9-nts-x86_64.dll”
xdebug.idekey=PhpStorm
xdebug.remote_enable = On
xdebug.remote_host=localhost
xdebug.remote_port=9000
xdebug.remote_handler=dbgp
4 、重啟apache phpinfo（）可以看到php–xdebug設置 wbr—phpstorm wbr斷點調試 xdebug的那一塊
php–xdebug設置 wbr—phpstorm wbr斷點調試php–xdebug設置 wbr—phpstorm wbr斷點調試
這一欄很長，要注意下面的表格中，xdebug.idekey 這一行內容
php–xdebug設置 wbr—phpstorm wbr斷點調試
5 、然後再配置 phpstorm 里的
php–xdebug設置 wbr—phpstorm wbr斷點調試php–xdebug設置 wbr—phpstorm wbr斷點調試
6 、新建一個調試
php–xdebug設置 wbr—phpstorm wbr斷點調試php–xdebug設置 wbr—phpstorm wbr斷點調試
7 、設置一下 服務器路徑和文件名
php–xdebug設置 wbr—phpstorm wbr斷點調試
php–xdebug設置 wbr—phpstorm wbr斷點調試
然後可以隨意地打斷點，按那個小蟲子按鈕來調試程序了
php 怎麼寫斷點續傳 有插件也行 求大神
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.
可以在網上找找. 關鍵字: “flex php 上傳”
大文件上傳, 走 http 是比較費勁兒的. 不穩定是關鍵.
原創文章，作者：小藍，如若轉載，請註明出處：https://www.506064.com/zh-hk/n/159704.html
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