/**

 * 函数介绍:    用于post方式提交数据

 * 输入参数:    完整url, 数据

 * 返回值  :    接口返回值

 */

function post_it($url, $data = '', $timeout = '6') {

    $urls = parse_url($url);

    if (!$urls) {

        return "-500";

    }

    $port = isset($urls['port']) ? $urls['port'] : null; //isset()判断

    if (!$port) {

        $port = "80";

    }

    $host = $urls['host'];

    //----------------------------------------------//

    $httpheader = "POST " . $url . " HTTP/1.0" . "\r\n" . "Accept:*/*" . "\r\n" . "Accept-Language:zh-cn" . "\r\n" . "Referer:" . $url . "\r\n" . "Content-Type:application/x-www-form-urlencoded" . "\r\n" . "User-Agent:Mozilla/4.0(compatible;MSIE 7.0;Windows NT 5.1)" . "\r\n" . "Host:" . $host . "\r\n" . "Content-Length:" . strlen($data) . "\r\n" . "\r\n" . $data;

    $fd = fsockopen($host, $port);

    if (!is_resource($fd)) {

        return "fsockopen failed";

    }

    fwrite($fd, $httpheader);

    stream_set_blocking($fd, TRUE);

    stream_set_timeout($fd, $timeout);

    $info = stream_get_meta_data($fd);

    $gets = "";

    while ((!feof($fd)) && (!$info['timed_out'])) {

        $data .= fgets($fd, 8192);

        $info = stream_get_meta_data($fd);

        @ob_flush();

        flush();

    }

    if ($info['timed_out']) {

        return "timeout";

    } else {

        //echo $data;

        $contentInfo = explode("\n\n", str_replace("\r", "", $data));

        if (!strstr($contentInfo[0], "HTTP/1.1 200 OK")) {

            return -10;

        }

        return trim($contentInfo[1]);

    }

}