如何解決Nginx下UCenter通訊失敗的問題

if(!$fp = @fsocketopen(($scheme == 'https' ? 'ssl' : $scheme).'://'.($scheme == 'https' ? $host : ($ip ? $ip : $host)), $port, $errno, $errstr, $timeout)) {
     $context = array(
        'http' => array(
           'method' => $post ? 'POST' : 'GET',
           'header' => $header,
           'content' => $post,
           'timeout' => $timeout,
        ),
     );
     $context = stream_context_create($context);
     $fp = @fopen($scheme.'://'.($scheme == 'https' ? $host : ($ip ? $ip : $host)).':'.$port.$path, 'b', false, $context);

function fsocketopen($hostname, $port = 80, &$errno, &$errstr, $timeout = 15) {
     $fp = '';
     if(function_exists('fsockopen')) {
        $fp = @fsockopen($hostname, $port, $errno, $errstr, $timeout);
     } elseif(function_exists('pfsockopen')) {
        $fp = @pfsockopen($hostname, $port, $errno, $errstr, $timeout);
     } elseif(function_exists('stream_socket_client')) {
        $fp = @stream_socket_client($hostname.':'.$port, $errno, $errstr, $timeout);
     }
     return $fp;
  }

if(!$fp = @fsocketopen('localhost', $port, $errno, $errstr, $timeout)) {
  //if(!$fp   = @fsocketopen(($scheme == 'https' ? 'ssl' : $scheme).'://'.($scheme ==   'https' ? $host : ($ip ? $ip : $host)), $port, $errno, $errstr, $timeout)) {
     $context = array(
        'http' => array(
           'method' => $post ? 'POST' : 'GET',
           'header' => $header,
           'content' => $post,
           'timeout' => $timeout,
        ),
     );
     $context = stream_context_create($context);
     $fp = @fopen($scheme.'://'.($scheme == 'https' ? $host : ($ip ? $ip : $host)).':'.$port.$path, 'b', false, $context);
     $fpflag = 1;
  }