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我正在构建的基于 CodeIgniter 的应用程序的一部分存在问题。

我必须连接到远程服务器，并从第三方获得一组相当详细的说明，说明如何打开套接字、发送一些 XML 数据并接收响应 - 在 VB 脚本中。我已将其翻译成下面的 PHP 代码。目前，根据我的日志，数据正在写入服务器（日志输出如下所示）。然而，代码的 fgets() 部分似乎正在超时，没有错误或任何东西......使得事情很难调试。

从我读过的关于fsockopen()和fgets()的内容来看，以下内容应该有效，但显然它没有。问题是没有错误消息等继续，我对如何调试它有点茫然。

如果任何有空闲时间的人可以看看它只是为了看看我是否犯了一个明显的错误（或者确认我正在做的事情在这件事上是正确的），我将不胜感激。

这是代码（对不起，我不得不删掉一些代码）。

public function makeBooking($orderId) {

    // get entire XML file as a string
    $xmlString = $this->getXmlString();

    // replace non-alphanumeric characters
    $xmlString = $this->replaceChars($xmlString);

    // get length of xml string
    $xmlStrCount = mb_strlen($xmlString) + 7;

    // attempt to open socket
    $fp = fsockopen('xxx.xx.xxx.xx', '81', $errno, $errstr, 10); 

    if (!$fp) {

        // couldn't open socket
        log_message('ERROR', "*** Couldn't open socket: $errno $errstr " . ' | line ' . __LINE__ . ' of ' . __FILE__);

    } else {

        log_message('DEBUG', "*** Socket open, connected to remote server ");

        $lf = chr(13).chr(10);

        // opened socket, prepare output
        $output = '"POST xxxxxxxxxxxx.asp HTTP/1.0"' . $lf;
        $output .= '"Accept: */*"' . $lf;                                            
        $output .= '"User-Agent: xxxxxxxxxxx_socket/1.0";' . $lf;
        $output .= '"Content-type: application/x-www-form-urlencoded";' . $lf;
        $output .= '"Content-length: ' . $xmlStrCount . '";' . $lf;
        $output .= '""' . $lf;
        $output .= '"xml_in='.$xmlString.'"';

        // attempt to write output
        $result = fwrite($fp, $output);
        log_message('DEBUG', "***  Bytes written: $result " . ' | line ' . __LINE__ . ' of ' . __FILE__);
        if($result) {
            log_message('DEBUG', "*** Wrote output:$lf$lf$output$lf");
        } else {
            log_message('ERROR', "*** Failed to write output:$lf$lf$output$lf");
        }


        // read data from server until no more responses are sent            
        // while (!feof($fp)) {
        if(!feof($fp)) {
            log_message('DEBUG',"*** Requesting line 1 from remote server" );
           //$line = fgets($fp);
            $line = fgets($fp);
            if($line) {
                log_message('DEBUG',"*** Retreived line 1: " . print_r($line,TRUE) );
            } else {
                log_message('ERROR',"*** Could not retreive line 1" );
            }
        }
        fclose($fp);
        log_message('DEBUG',"*** Closed connection to remote server" );
    }

}

日志。很明显，其中很多是我解释相关结果的方式。我截断了 URL 编码的 XML 数据：

    DEBUG - 2012-09-21 14:50:01 --> *** Socket open, connected to remote server 
DEBUG - 2012-09-21 14:50:01 --> ***  Bytes written: 8801  | line 57
DEBUG - 2012-09-21 14:50:01 --> *** Wrote output:

"POST xxxxxxxxxxxx.asp HTTP/1.0"
"Accept: */*"
"User-Agent: xxxxxxxxxxxxx_socket/1.0";
"Content-type: application/x-www-form-urlencoded";
"Content-length: 8630";
""
"xml_in=%26lt%3B%3Fxml+version%3D%26quot%3B1.0%26quot%3B..."
DEBUG - 2012-09-21 14:50:01 --> *** Requesting line 1 from remote server
ERROR - 2012-09-21 14:51:01 --> *** Could not retreive line 1
DEBUG - 2012-09-21 14:51:01 --> *** Closed connection to remote server

任何关于在哪里看的想法将不胜感激。

- - - - - - - 编辑 - - - - - - -

以防万一有人偶然发现这个线程有类似的问题，这就是我最后根据罗比的建议所做的：

public function createBooking($orderId) {

    // http://php.net/manual/en/book.curl.php

    // get entire XML file as a string
    $xmlString = $this->getXmlString();

    // replace non-alphanumeric characters - can't use htmlentities or htmlspecialchars
    // because remote server uses different codes
    $xmlString = $this->replaceChars($xmlString);

    // get length of xml string
    $xmlStrCount = mb_strlen($xmlString) + 7;

    // prepare output
    $lf = chr(13).chr(10);
    $output = '"Accept: */*"' . $lf;                                            
    $output .= '"User-Agent: xxxxx_socket/1.0";' . $lf;
    $output .= '"Content-type: application/x-www-form-urlencoded";' . $lf;
    $output .= '"Content-length: ' . $xmlStrCount . '";' . $lf;
    $output .= '""' . $lf;
    $output .= '"xml_in='.$xmlString.'"';

    // set curl options
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL,"http://xxxxx:xx/xxxxx.asp");
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $output);
    // Request the header information in the response. 
    curl_setopt($ch,CURLOPT_HEADER,true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    // Now execute the query
    $response = curl_exec ($ch);
    if(!$response) {
        log_message('ERROR', "*** Curl error: " . curl_error($ch) . ' | line ' . __LINE__ . ' of ' . __FILE__);
        show_error(DEFAULT_ERR_MSG);
    }
    curl_close ($ch);



    // Response is the data. 
    $aLines = explode("\n", $response);  // Splits the resposne into an array so you can process individual lines.
    // etc

    print_r($aLines);

}
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1 回答 1

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不确定错误，但你需要while (!$feof($fp))而不是'if' - while 将循环直到你得到所有响应。这仍然不能解决你的问题，所以...

如果您使用 curl 实现，您可能会发现这更容易。更短，更整洁，更容易调试。http://php.net/manual/en/book.curl.php

<?php

$ch = curl_init();

// Set the various options. replace the xxxx's 
curl_setopt($ch, CURLOPT_URL,"xxxxxxxxxxxx.asp");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, 'xml_in=' . $xmlString);
curl_setopt($ch,CURLOPT_USERAGENT,'xxxxxxxxxxx_socket/1.0');

// Request the header information in the response. You're example gets the header, but you may not need it, so change to false if not
curl_setopt($ch,CURLOPT_HEADER,true);

// Now execute the query
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec ($ch);
curl_close ($ch);

// Response is the data. 
$aLines = explode("\n", $response);  // Splits the resposne into an array so you can process individual lines.
// etc

?>
于 2012-09-21T03:56:31.773 回答