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php 断点续传怎么做啊!

功能:支持断点续传的下载,能计算传输率,能控制传输率

简易使用方法:

$object = new httpdownload();

$object-set_byfile($file)%N#H#%;//服务器文件名,包括路径

$object-filename = $filename;//下载另存为的文件名

$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中文件断点上传怎么实现

同ls。

你把断点上传的功能做成ActiveX放在页面上,提示需要断点上下载的用户安装ActiveX。你可以去后盾,那里我觉得挺好的,只是个人认为,他那里教学质量挺好的!不喜勿喷!

phpstorm 怎么断点调试thinkphp

php--xdebug设置 ---phpstorm 断点调试方法如下:

配置好了之后 可以使用 ide的断点调试

Xdebug在PHP中的安装配置涉及php.ini配置文件的修改。

1 、首先需要下载Xdebug,根据安装的PHP版本,选择合适的Xdebug版本,

2 、 安装Xdebug

将下载的php_xdebug-2.1.0-5.3-vc6.dll复制到PHP安装目录下的ext目录,ext目录专门用来存放PHP扩展库DLL文件。

3、 配置php.ini

安装Xdebug的最后一步就是配置php.ini文件,打开C:\php目录下的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 、重启apache phpinfo()可以看到php--xdebug设置 wbr---phpstorm wbr断点调试 xdebug的那一块

php--xdebug设置 wbr---phpstorm wbr断点调试php--xdebug设置 wbr---phpstorm wbr断点调试

这一栏很长,要注意下面的表格中,xdebug.idekey 这一行内容

php--xdebug设置 wbr---phpstorm wbr断点调试

5 、然后再配置 phpstorm 里的

php--xdebug设置 wbr---phpstorm wbr断点调试php--xdebug设置 wbr---phpstorm wbr断点调试

6 、新建一个调试

php--xdebug设置 wbr---phpstorm wbr断点调试php--xdebug设置 wbr---phpstorm wbr断点调试

7 、设置一下 服务器路径和文件名

php--xdebug设置 wbr---phpstorm wbr断点调试

php--xdebug设置 wbr---phpstorm wbr断点调试

然后可以随意地打断点,按那个小虫子按钮来调试程序了

php 怎么写断点续传 有插件也行 求大神

HTTP协议里, 对断点下载有支持.

断点上传单纯靠PHP 是做不了的.

因为普通的浏览器端没那功能.(上传的时候 还是会整个文件编码发送)

想实现的话 , 客户端需要插件了,

客户端可以使用flex实现. 服务端, PHP可以写个webservice 接受文件.

可以在网上找找. 关键字: "flex php 上传"

大文件上传, 走 http 是比较费劲儿的.  不稳定是关键.