php 访问一个网站地址,发送post数据和设置cookie,取得服务器返回的数据(html,setcookie命令设置的cookie);

 <?php function so($host,$port, $url, $extraData,&$errno,&$errstr,$method='GET'){     $fp = fsockopen($host, $port, $errno, $errstr, 30);     if (!$fp) {         echo "$errstr ($errno)<br /> ";         return array('errstr'=>$errstr,'errno'=>$errno);     }     $out = "$method $url HTTP/1.1 /r/n";     $out .= "Host: $host:$port /r/n";     if(strlen($extraData)>3){         $out .= $extraData;     }else{            $out .= "Connection: Close ";     }     fwrite($fp, $out);     $content="";     while (!feof($fp)) {         $content.=fgets($fp, 128);         //echo $content;     }     fclose($fp);     $savedCookies=array();     $contents=explode(" ",$content);     foreach($contents as $c){         if(strpos($c,":")!==false){             $curContent=explode(":",$c);             if($curContent[0]=='Set-Cookie'){                 $cookieInfos=explode(";",$curContent[1]);                 $pos=strpos($cookieInfos[0],'=');                 $cookieName=ltrim(substr($cookieInfos[0],0,$pos));                 $cookieValue=substr($cookieInfos[0],$pos-1);                 //echo "$cookieName=>".$cookieValue." ";                 $savedCookies[$cookieName]=$cookieValue;             }         }     }     return array($content,$savedCookies); } $extraData=""; $data='MYUSERINFO='.urlencode('username=leinchu&password=123qwe'); //echo "Data Length:".strlen($data)." "; $extraData.="Cookie: ".$data.";  /r/n"; $extraData.="Content-Type: application/x-www-form-urlencoded/r/n";    $extraData.="Content-Length: ".strlen($data)."/r/n"; $extraData.="Connection: Close /r/n/r/n"; $extraData.=$data;    //so(服务器名或者ip，服务器端口-通常是80，请求的文件路径-可加参数：?getparam1=123，额外的数据-可以是Accept-Language或者是post的数据或者cookie信息，错误号，错误描述，方法-GET||POST); $rq=so("127.0.0.1", 803, "/cookie.php", $extraData, $errno, $errstr, "POST"); echo "------------------------------------------------- /r/n"; var_dump($rq[0]); echo "------------------------------------------------- "; ?>

 结果:

Cookie: array 'MYUSERINFO' => string 'username=leinchu&password=123qwe' (length=32)

POST:
array
  'MYUSERINFO' => string 'username=leinchu&password=123qwe' (length=32)