Empty cURL json response

我试图通过curl从服务器获取数据，但在授权后，我收到一个空响应。这个服务器上的站点使用AJAX来显示内容，所以首先我检查了在通过浏览器与它交互时发送的标头和查询参数。

一般头:

Remote Address:*.*.*.*:80
Request URL:http://example.com/search/search/?0.42697851033881307
Request Method:POST
Status Code:200 OK

表单数据:

QUERY:29061
QUERY_TYPE:2
QUERY_DATA:S1
PKW:X
LKW:X
FORMAT:json
LANG:ru

这是无休止的google和stackoverflow的结果:

<?php
$curl = curl_init('http://example.com/authorization/login/');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($curl, CURLOPT_REFERER, 'http://example.com/');
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, [
    'LOGIN' => 'MY_LOGIN',
    'PASSWORD' => 'MY_PASSWORD',
    'REMEMBER' => true,
    'FORMAT' => 'json',
    'LANG' => 'ru'
]);
curl_exec($curl);
curl_close($curl);
$curl = curl_init('http://example.com/search/search/?0.42697851033881307');
curl_setopt($curl, CURLOPT_HEADER, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($curl, CURLOPT_REFERER, 'http://example.com/');
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
$postFields = json_encode([
    'FORMAT' => 'json',
    'LANG' => 'ru',
    'QUERY' => '29061',
    'QUERY_TYPE' => '2',
    'QUERY_DATA' => 'S1',
    'PKW' => 'X',
    'LKW' => 'X'
]);
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($curl, CURLOPT_POSTFIELDS, $postFields);
curl_setopt($curl, CURLOPT_HTTPHEADER, [
    'X-Requested-With: XMLHttpRequest',
]);
$response = curl_exec($curl);
curl_close($curl);
var_dump($response);

下面是回应:

string(1699) "HTTP/1.1 302 Moved Temporarily
Server: nginx/1.9.2
Date: Fri, 28 Aug 2015 14:57:20 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: ci_sessions=...; expires=Sat, 27-Aug-2016 14:57:21 GMT; Max-Age=31536000; path=/; httponly
Location: http://example.com/authorization/setVkorgInfo
HTTP/1.1 302 Moved Temporarily
Server: nginx/1.9.2
Date: Fri, 28 Aug 2015 14:57:21 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: ci_sessions=...; expires=Sat, 27-Aug-2016 14:57:21 GMT; Max-Age=31536000; path=/; httponly
Set-Cookie: VKORG=5000; expires=Sat, 27-Aug-2016 14:57:21 GMT; Max-Age=31536000; path=/
Location: http://example.com/
HTTP/1.1 200 OK
Server: nginx/1.9.2
Date: Fri, 28 Aug 2015 14:57:21 GMT
Content-Type: application/json; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: ci_sessions=...; expires=Sat, 27-Aug-2016 14:57:22 GMT; Max-Age=31536000; path=/; httponly
{
    "status": true,
    "arr_messages": [],
    "data": []
}"

当我通过浏览器检索数据时，我在Chrome的控制台中看到"data":数组中具有所需数据的对象，但在我的脚本中它是空的。我的请求有什么问题吗?

以下是截图:http://joxi.ru/XEA48NSQozPAbz

如果我发送错误的参数，我得到这个:

{
    "status": false,
    "arr_messages": [
        {
            "id": "123456",
            "login": "MY_LOGIN",
            "type": "E",
            "text": "Error inputs",
            "date": "2015-08-28 22:24:20"
        }
    ],
    "data": []
}

因此，如果我得到status: true和空"arr_messages"，那么我正在发送正确的请求。

UPD:获取内容的AJAX函数:

var getApiAjax=function(url, req, callback, errorcallback, async)
{
    if(typeof(errorcallback)=="undefined")
    {
        errorcalback=function(){return false;}
    }
    if(typeof(async)=="undefined")
    {
        async=true;
    }
    req.FORMAT = "json";
    req.LANG = "ru";
    var xhr=$.ajax(
    {
        url: url+"?"+Math.random(),
        type: "POST",
        data: req,
        async: async,
        dataType: "json",
        success: function(resp)
        {
            var showMes = true;
            if( spinnerModal.isShowSpinner() ){
                spinnerModal.hidePleaseWait(); 
                showMes = false;   
            } 
            if( typeof resp.arr_messages != "undefined" && resp.arr_messages.length ) {
                if (resp.status) {
                    showMessage( resp.arr_messages, callback, resp );
                } else {
                    showMessage( resp.arr_messages, errorcallback, resp );
                }
                if(showMes) informModal.showMessage();
            } else { 
                if (resp.status) {
                    callback( resp );
                } else {
                    errorcallback( resp )
                }
            }                             
        },
        error: function(msg)
        {   
            var arr_messages = new Array();
            if( spinnerModal.isShowSpinner() ) spinnerModal.hidePleaseWait();
            if( typeof msg == "string" )
            {
                arr_messages.push( { 'text' : msg, 'type' : 'E' } );
                showMessage( arr_messages, errorcallback, msg, true );
            }
            else 
            {
                errorcallback();               
            }
        }
    });
    return xhr;
};

我可以从浏览器的控制台中调用这个函数并得到我想要的结果

getApiAjax("/search/search/",{
            'QUERY'         : "29061",
            'QUERY_TYPE'    : "2",
            'QUERY_DATA'    : "S1",
            'PKW'           : "X",
            'LKW'           : "X"
        })

截图:http://joxi.ru/WL211LSbgN42Xq

所以我不知道curl请求有什么问题:(