php模拟登录

php模拟登录 获取SESSIONID,并则在读取网页的时候发送

方法1用curl:
一.先开启php curl函数库的步骤
1).去掉windows/php.ini 文件里;extension=php_curl.dll前面的; /*用 echo phpinfo();查看php.ini的路径*/
2).把php5/libeay32.dll,ssleay32.dll复制到系统目录windows/下
3).重启apache
二.例子
例子:

 
<?php
$cookie_jar = tempnam('./tmp','cookie');
$ch = curl_init(); curl_setopt($ch,CURLOPT_URL,'http://******');
curl_setopt($ch, CURLOPT_POST, 1);
$request = 'email_address=&password=&action=';
curl_setopt($ch, CURLOPT_POSTFIELDS, $request);
//把返回来的cookie信息保存在$cookie_jar文件中
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_jar);
//设定返回的数据是否自动显示
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//设定是否显示头信息
curl_setopt($ch, CURLOPT_HEADER, false);
//设定是否输出页面内容
curl_setopt($ch, CURLOPT_NOBODY, false);
curl_exec($ch);
curl_close($ch); //get data after login

$ch2 = curl_init();
curl_setopt($ch2, CURLOPT_URL, 'http://*****');
curl_setopt($ch2, CURLOPT_HEADER, false);
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch2, CURLOPT_COOKIEFILE, $cookie_jar);
$orders = curl_exec($ch2);
echo '';
echo strip_tags($orders);
echo '';
curl_close($ch2); 
?>

方法2用fsockopen:

<?php
function GetWebContent($host, $method, $str, $sessid = '')
{ 
    $ip = gethostbyname($host); 
//echo "ip=$ip<br>";
    [email=$fp=@fsockopen($ip,80]$fp=@fsockopen($ip,80[/email]); 
    if (!$fp) return; 
    fputs($fp, "$method\r\n"); 
    fputs($fp, "Host: $host\r\n"); 
    if (!empty($sessid)) 
    { 
        fputs($fp, "Cookie: PHPSESSID=$sessid; path=/;\r\n"); 
    } 
    if ( substr(trim($method),0, 4) == "POST") 
    { 
        fputs($fp, "Content-Length: ". strlen($str) . "\r\n"); //  别忘了指定长度 
    }
    //fputs($fp, "Content-Type: application/x-www-form-urlencoded\r\n\r\n"); 
fputs($fp, "Content-Type: application/x-www-form-urlencoded\r\n"); 
fputs($fp, "User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; InfoPath.1)\r\n)");//add by Ew 071012
fputs($fp, "Connection: Keep-Alive\r\n\r\n");
    if ( substr(trim($method),0, 4) == "POST") 
    { 
        fputs($fp, $str."\r\n"); 
    } 
    while(!feof($fp)) 
    { 
        $response .= fgets($fp); 
    } 
    $hlen = strpos($response,"\r\n\r\n"); // LINUX下是 "\n\n" 
    $header = substr($response, 0, $hlen); 
//echo "header=$header<hr><hr>";
    $entity = substr($response, $hlen + 4); 
    if ( preg_match('/PHPSESSID=([0-9a-z]+);/i', $header, $matches)) 
    { 
        $a['sessid'] = $matches[1]; 
    } 
    if ( preg_match('/Location: ([0-9a-z\_\?\=\&\#\.]+)/i', $header, $matches)) 
    { 
        $a['location'] = $matches[1]; 
    }
    $a['content'] = $entity;     
    fclose($fp); 
    return $a; 
}

  $response = GetWebContent("$host","POST /$login_page HTTP/1.0", $str);//登入得到新的session_id
  //...可以在这里先保存session_id
  $response = GetWebContent("$host","GET /$somepage HTTP/1.0", '', $response['sessid']);//使用session_id访问页面
  echo $response['location'].$response['content']."<br>"; 
?>

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