php cURL给出空白响应正文

Question

我在以下cURL请求上得到一个空白的响应正文，但仅在一台计算机上（运行两个vagrant box的OSX）。 我已经检查并重新检查了项目代码，并且确实可以在我使用过的所有其他机器上工作。 有任何想法吗？

我在PHP中的呼叫是POSTRequestTrusted(/api/login, <some_json_data>

public static function POSTRequestTrusted($service_name, $data) {

  self::checkApiKey(); //checks the key is set

  return self::execCURLRequest("POST", $service_name, array('Content-Type: application/json',
          'Accept: application/json',
          'Authorization: Basic ' . self::$apiKey )
      , $data);
}

public static function execCURLRequest($type, $service_name = null, $custom_headers = null, $data = null) {

  //If the verb is unexpected, throw exception
  if($type !== "GET"
      and $type!== "POST"
      and $type!== "DELETE"
      and $type!== "PUT"
      and $type!== "PATCH" ) 
    { return -1 ;}

  //If calling a service, or just pinging the base hostname:port
  if($service_name !== null) {
    $full_url = self::$apiBase . $service_name;
  } else {
    $full_url = self::$apiBase;
  }

  // initialize cURL
  $ch = curl_init($full_url);

  // SET the HTTP VERB type, unless it's a POST which doesn't require anything
  if($type == 'PUT' or $type == 'DELETE' or $type == 'PATCH'){
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $type);
  } else if ($type == 'GET'){
    curl_setopt($ch, CURLOPT_HTTPGET, true);
  }
  //Flag needed to return response
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

  // custom headers are needed for testing trusted client calls.
  if($custom_headers !== null){
    $full_header = $custom_headers;
  } else {
    $full_header = self::$STD_HEADER;
  }

  curl_setopt($ch, CURLOPT_HTTPHEADER, $full_header); //Set the Header
  curl_setopt($ch, CURLOPT_HEADER, 1); // return headers?

  // If data was present, encode it and append to request
  if($data !== null){
    $json_data = json_encode($data);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $json_data);
  }

  $response = curl_exec ($ch);

  // parse the entire response, down to the header and body
  list($response_header, $body) = explode("\r\n\r\n", $response, 2);

  $response_body = json_decode($body);

  curl_close ($ch);

  return array($response_header, $response_body); 

输出：

HTTP\\\\/1.1 200 OK\\\\r\\\\nDate: Tue, 24 Jun 2014 22:41:46 GMT\\\\r\\\\nServer: Apache\\\\/2.4.9 (Ubuntu)\\\\r\\\\nX-Powered-By: PHP\\\\/5.5.13-2+deb.sury.org~precise+1\\\\r\\\\nCache-Control: no-store\\\\r\\\\nPragma: no-cache\\\\r\\\\nContent-Length: 174\\\\r\\\\nContent-Type: application\\\\/json",null

Answer 1

  $response_body = json_decode($body);

  curl_close ($ch);

  return array($response_header, $response_body);

http://ca1.php.net/manual/en/function.json-decode.php

返回值

以适当的PHP类型返回以json编码的值。 值true，false和null分别返回为TRUE，FALSE和NULL。 如果无法解码json或编码的数据深于递归限制，则返回NULL。

您应该检查返回的主体实际是什么，因为它无法正确解码。 你已经得到了后面的内容长度的头说，你应该有174个字节的东西 。