function send_post($url, $post_data) {

        //$postdata = http_build_query($post_data);    //把数组转换成key=val&

        $options = array(

                'http' => array(

                        'method' => 'POST',

                        'header' => 'Content-type:application/x-www-form-urlencoded',

                        'content' => $post_data,

                        'timeout' => 2 * 60 // 超时时间（单位:s）

                )

        );

        $context = stream_context_create($options);

        $result = file_get_contents($url, false, $context);

        return $result;

    }

 function send_post2($host,$port,$urlPage,$postData){

//         echo str_pad(" ", 256);

        $errno = '';

        $errstr = '';

        $length = strlen($postData);

        $fp = fsockopen($host,$port,$errno,$errstr,120) or exit($errstr."--->".$errno);

        //构 造post请求的头

        $header = "POST $urlPage HTTP/1.1\r\n";

        $header .= "Host:".$host."\r\n";

        $header .= "Referer:".$urlPage."\r\n";

        $header .= "Content-Type:application/x-www-form-urlencoded\r\n";

        $header .= "Content-Length:".$length."\r\n";

        $header .= "Connection:Close\r\n\r\n";

        //添加post的字符串

        $header .= $postData."\r\n";

//         echo "1";

//         my_flush();

        //发送post的数据

        fputs($fp, $header);

//         echo "2";

//         my_flush();

        $inheader = 1;

        $result = ""; //最终结果

        while (!feof($fp)){

            $line = fgets($fp,1024); // 去除请求包的头只显示页面 的返回数据  (注意fgets  fread($fp,1)最少2个字节起。)

//             echo $line;

//             my_flush();

            if($inheader && ($line == "\n" || $line == "\r\n"))

                $inheader = 0;

            if($inheader==0){

                $result .= $line;

            }

        }

        fclose($fp);

//         echo "3";

//         my_flush();

        return $result;

    }

    //刷新缓冲区

    function my_flush(){

        ob_flush();

        flush();

    }

$host = "127.0.0.1";

$urlPage = "http://localhost/admin/confirmCode.php";

$port = "80";

$postData = "AAobjid=33$&username1=fff";

echo send_post2($host,$port,$urlPage,$postData) ;

// echo send_post($urlPage,$postData);