php 有没有断点续传 http下载的类

Question

没有讲清你的需求....理论上,php可以做成多线程的下载点.

Answer 1

function getfilebodybinhttp($filename){
eregi("^(http://)?([^/:]*):?([^/]*)?(.*)?",$filename,$fileparts);
$port=($fileparts[3]=="")?80:intval($fileparts[3]);
$strCommands="";
$retBin=NULL;
$body=NULL;
$psize=1024;
if($fphttp=fsockopen($fileparts[2],$port,$errno,$errstr,30)){

$strCommands.= $this->Method." ".$fileparts[4]." HTTP/1.1\n";
$strCommands.="Host:".$fileparts[2]."\n";
$strCommands.="Accept:".$this->Accept."\n";
$strCommands.="User-Agent:".$this->userAgent."\n";
//$strCommands.="Pragma:no-cache\n";
$strCommands.="Content-type: application/x-www-form-urlencoded\n";
if($this->Cookie!="")
$strCommands.= "Cookie:".$this->Cookie."\n"; 
if($this->AcceptLanguage!="")
$strCommands.="Accept-Language:".$this->AcceptLanguage."\n";
$strCommands=$strCommands."Referer:".(($this->Referer=="")?$fileparts[2]:$this->Referer)."\n";
$strCommands.="Connect:CLOSE\n";
$strCommands.="\n";
fputs($fphttp,$strCommands);
//echo $strCommands."<p>";

$crlf=chr(13).chr(10);
$bodyEnd=chr(0).chr(0);
while(($parts=fgets($fphttp)) && $parts!=$crlf && (substr($parts,-2)!=$bodyEnd))
$head.=$parts;
//eregi("Content-Length:([^\n]*)?.*",$head,$regs);
//$filesize=intval($regs[1]);
//$l=intval($filesize/$psize)+1;
while(!feof($fphttp)){
stream_set_timeout($fphttp, 60);
$body .= fread($fphttp, 4096);
$info = stream_get_meta_data($fphttp);
if ($info['timed_out']) break;
} fclose($fphttp);
return $body;
}
}这是用fsockopen写的下载函数
该如何去做多线程

Answer 2

运行多个进程,每个进程读一部分!
主机是windows的 好像不支持pcntl_fork
不知道如何实现多线程

Answer 3

100%不支持 而且多线程只能用在CLI方式

Answer 4

PHP的Apache SAPI能多线程吗？