Curl Post - 服务器未返回响应DVLA抓取ASPx

时间：2016-10-09 20:13:42

标签： php curl

我以前一直使用以下cURL脚本来使用DVLA网站上的数据来协助mysite上的数据实现。我很抱歉，我不能指出代码的原始来源，因为我从这个网站得到它并且没有注意到来源。

function hhb_curl_exec($ch, $url)
{
    static $hhb_curl_domainCache = "";
    //$hhb_curl_domainCache=&$this->hhb_curl_domainCache;
    //$ch=&$this->curlh;
    if (!is_resource($ch) || get_resource_type($ch) !== 'curl') {
        throw new InvalidArgumentException('$ch must be a curl handle!');
    }
    if (!is_string($url)) {
        throw new InvalidArgumentException('$url must be a string!');
    }

    $tmpvar = "";
    if (parse_url($url, PHP_URL_HOST) === null) {
        if (substr($url, 0, 1) !== '/') {
            $url = $hhb_curl_domainCache . '/' . $url;
        } else {
            $url = $hhb_curl_domainCache . $url;
        }
    }
    ;

    curl_setopt($ch, CURLOPT_URL, $url);
    $html = curl_exec($ch);
    if (curl_errno($ch)) {
        throw new Exception('Curl error (curl_errno=' . curl_errno($ch) . ') on url ' . var_export($url, true) . ': ' . curl_error($ch));
        // echo 'Curl error: ' . curl_error($ch);
    }
    if ($html === '' && 203 != ($tmpvar = curl_getinfo($ch, CURLINFO_HTTP_CODE)) /*203 is "success, but no output"..*/ ) {
        throw new Exception('Curl returned nothing for ' . var_export($url, true) . ' but HTTP_RESPONSE_CODE was ' . var_export($tmpvar, true));
    }
    ;
    //remember that curl (usually) auto-follows the "Location: " http redirects..
    $hhb_curl_domainCache = parse_url(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL), PHP_URL_HOST);
    return $html;
}
function hhb_curl_exec2($ch, $url, &$returnHeaders = array(), &$returnCookies = array(), &$verboseDebugInfo = "")
{
    $returnHeaders    = array();
    $returnCookies    = array();
    $verboseDebugInfo = "";
    if (!is_resource($ch) || get_resource_type($ch) !== 'curl') {
        throw new InvalidArgumentException('$ch must be a curl handle!');
    }
    if (!is_string($url)) {
        throw new InvalidArgumentException('$url must be a string!');
    }
    $verbosefileh = tmpfile();
    $verbosefile  = stream_get_meta_data($verbosefileh);
    $verbosefile  = $verbosefile['uri'];
    curl_setopt($ch, CURLOPT_VERBOSE, 1);
    curl_setopt($ch, CURLOPT_STDERR, $verbosefileh);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    $html             = hhb_curl_exec($ch, $url);
    $verboseDebugInfo = file_get_contents($verbosefile);
    curl_setopt($ch, CURLOPT_STDERR, NULL);
    fclose($verbosefileh);
    unset($verbosefile, $verbosefileh);
    $headers       = array();
    $crlf          = "\x0d\x0a";
    $thepos        = strpos($html, $crlf . $crlf, 0);
    $headersString = substr($html, 0, $thepos);
    $headerArr     = explode($crlf, $headersString);
    $returnHeaders = $headerArr;
    unset($headersString, $headerArr);
    $htmlBody = substr($html, $thepos + 4); //should work on utf8/ascii headers... utf32? not so sure..
    unset($html);
    //I REALLY HOPE THERE EXIST A BETTER WAY TO GET COOKIES.. good grief this looks ugly..
    //at least it's tested and seems to work perfectly...
    $grabCookieName = function($str,&$len)
    {
        $len=0;
        $ret = "";
        $i   = 0;
        for ($i = 0; $i < strlen($str); ++$i) {
            ++$len;
            if ($str[$i] === ' ') {
                continue;
            }
            if ($str[$i] === '=') {
                --$len;
                break;
            }
            $ret .= $str[$i];
        }
        return urldecode($ret);
    };
    foreach ($returnHeaders as $header) {
        //Set-Cookie: crlfcoookielol=crlf+is%0D%0A+and+newline+is+%0D%0A+and+semicolon+is%3B+and+not+sure+what+else
        /*Set-Cookie:ci_spill=a%3A4%3A%7Bs%3A10%3A%22session_id%22%3Bs%3A32%3A%22305d3d67b8016ca9661c3b032d4319df%22%3Bs%3A10%3A%22ip_address%22%3Bs%3A14%3A%2285.164.158.128%22%3Bs%3A10%3A%22user_agent%22%3Bs%3A109%3A%22Mozilla%2F5.0+%28Windows+NT+6.1%3B+WOW64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F43.0.2357.132+Safari%2F537.36%22%3Bs%3A13%3A%22last_activity%22%3Bi%3A1436874639%3B%7Dcab1dd09f4eca466660e8a767856d013; expires=Tue, 14-Jul-2015 13:50:39 GMT; path=/
        Set-Cookie: sessionToken=abc123; Expires=Wed, 09 Jun 2021 10:18:14 GMT;
        //Cookie names cannot contain any of the following '=,; \t\r\n\013\014'
        //
        */
        if (stripos($header, "Set-Cookie:") !== 0) {
            continue;
            /**/
        }
        $header = trim(substr($header, strlen("Set-Cookie:")));
        $len=0;
        while (strlen($header) > 0) {
            $cookiename                 = $grabCookieName($header,$len);
            $returnCookies[$cookiename] = '';
            $header                     = substr($header, $len + 1); //also remove the = 
            if (strlen($header) < 1) {
                break;
            }
            ;
            $thepos = strpos($header, ';');
            if ($thepos === false) { //last cookie in this Set-Cookie.
                $returnCookies[$cookiename] = urldecode($header);
                break;
            }
            $returnCookies[$cookiename] = urldecode(substr($header, 0, $thepos));
            $header                     = trim(substr($header, $thepos + 1)); //also remove the ;
        }
    }
    unset($header, $cookiename, $thepos);
    return $htmlBody;
}

##############################################################
function hhb_curl_init($custom_options_array = array())
{
    if (empty($custom_options_array)) {
        $custom_options_array = array();
        //i feel kinda bad about this.. argv[1] of curl_init wants a string(url), or NULL
        //at least i want to allow NULL aswell :/
    }
    if (!is_array($custom_options_array)) {
        throw new InvalidArgumentException('$custom_options_array must be an array!');
    }
    ;
    $options_array = array(
        CURLOPT_AUTOREFERER => true,
        CURLOPT_BINARYTRANSFER => true,
        CURLOPT_COOKIESESSION => true,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_FORBID_REUSE => false,
        CURLOPT_HTTPGET => true,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_CONNECTTIMEOUT => 10,
        CURLOPT_TIMEOUT => 11,
        CURLOPT_ENCODING => ""
        //CURLOPT_REFERER=>'example.org',
        //CURLOPT_USERAGENT=>'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0'
    );
    if (!array_key_exists(CURLOPT_COOKIEFILE, $custom_options_array)) {
        //do this only conditionally because tmpfile() call..
        static $curl_cookiefiles_arr = array(); //workaround for https://bugs.php.net/bug.php?id=66014
        $curl_cookiefiles_arr[]            = $options_array[CURLOPT_COOKIEFILE] = tmpfile();
        $options_array[CURLOPT_COOKIEFILE] = stream_get_meta_data($options_array[CURLOPT_COOKIEFILE]);
        $options_array[CURLOPT_COOKIEFILE] = $options_array[CURLOPT_COOKIEFILE]['uri'];

    }
    //we can't use array_merge() because of how it handles integer-keys, it would/could cause corruption
    foreach ($custom_options_array as $key => $val) {
        $options_array[$key] = $val;
    }
    unset($key, $val, $custom_options_array);
    $curl = curl_init();
    curl_setopt_array($curl, $options_array);
    return $curl;
}




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

//Registration and VRM have to be valid and make as per the DVLA format for makes otehrwise this wont work!

$registration_number = 'PK07LVD'; // must be a valid VRM to get the correct response
$vehicle_maker ='BMW'; //Make must matchVRM held with DVLA and entered in same format as DVLA list on site


$ch=hhb_curl_init();

$debugHeaders=array();
$debugCookies=array();
$debugRequest='';

$html=hhb_curl_exec2($ch,'https://www.vehicleenquiry.service.gov.uk/Default.aspx',$debugHeaders,$debugCookies,$debugRequest);
//first do an empty request to get a session id and cookies and the weird VIEWSTATE stuff...
$domd=@DOMDocument::loadHTML($html);
assert(is_object($domd));
$__VIEWSTATE=$domd->getElementById('__VIEWSTATE')->getAttribute('value');
$__VIEWSTATEGENERATOR=$domd->getElementById('__VIEWSTATEGENERATOR')->getAttribute('value');
$__EVENTVALIDATION=$domd->getElementById('__EVENTVALIDATION')->getAttribute('value');

//var_dump('__VIEWSTATE:',$__VIEWSTATE,'__VIEWSTATEGENERATOR:',$__VIEWSTATEGENERATOR,'__EVENTVALIDATION:',$__EVENTVALIDATION,'headers:',$debugHeaders,'cookies:',$debugCookies,'html:',$html,'request:',$debugRequest,'domd:',$domd);

//now to get the POST stuff
curl_setopt_array($ch,array(
CURLOPT_POST=>true,
CURLOPT_POSTFIELDS=>http_build_query(array(
'__LASTFOCUS'=>'',
'__EVENTTARGET'=>'',
'__VIEWSTATE'=>$__VIEWSTATE,
'__VIEWSTATEGENERATOR'=>$__VIEWSTATEGENERATOR,
'__EVENTVALIDATION'=>$__EVENTVALIDATION,
'ctl00$MainContent$txtSearchVrm'=>'$registration_number',
'ctl00$MainContent$MakeTextBox'=>'$vehicle_maker',
'ctl00$MainContent$txtV5CDocumentReferenceNumber'=>'',
'ctl00$MainContent$butSearch'=>'Search',
))
));


$html=hhb_curl_exec2($ch,'https://www.vehicleenquiry.service.gov.uk/Default.aspx',$debugHeaders,$debugCookies,$debugRequest);
//var_dump('headers:',$debugHeaders,'cookies:',$debugCookies,'html:',$html,'request:',$debugRequest);

echo $html;

?>

由于某种原因，上周发生了一些变化，我没有得到以$ html格式返回的结果，所有发生的事情都是进入车辆登记的表格，正在显示Make。

查询表格发送的变量是：

Array
(
    [__EVENTTARGET] => 
    [__EVENTARGUMENT] => 
    [__VIEWSTATE] => 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
    [__VIEWSTATEGENERATOR] => CA0B0334
    [__EVENTVALIDATION] => /wEdAAec98WnAVQeQUdqU6NI4oVRBOwywjxOOgpEYFN2beEgnftoCCZcWJSqSRLD/FKuxxkI0x5r4gPeKgWgSNWptTEWInv2PXI3Jzdn3U6eHDG4Qb7lltCXTdtnDbitYujbDJI0GQSIMiv32DreL6oRbYpQ8QTO8WJr3q5Y80Jf5PzdZW5VzdA=
    [ctl00$MainContent$txtSearchVrm] => pk07lvd
    [ctl00$MainContent$MakeTextBox] => bmw
    [ctl00$MainContent$txtV5CDocumentReferenceNumber] => 
    [ctl00$MainContent$butSearch] => Search
)

当我从我的服务器远程运行表单并将表单POST变量到https://vehicleenquiry.service.gov.uk/时，我确实得到了返回的所需结果，但显然是通过政府网站显示在浏览器上。

我正在寻找有关可能发生的事情或代码出错的帮助。拉出我的头发试图调查每个阶段为什么，当我运行cURL编码时，我没有得到$ html中返回的结果，而只是初始查询表单。

如果有任何帮助，我将不胜感激。我知道有一个类似的帖子，但没有详细说明已经采取了什么来调查这个问题。由于是新的网站说我无法回复。

// -------------------从原始代码编辑添加09/10/16 21:46 ------------- ---- //

此代码构成另一个功能的一部分。为了清晰起见，我已经删除了覆盖功能。

// ---------------------------关于输出---------- //

从某种意义上说，这段代码确实有效，因为$ html总是输出车辆查询服务的响应。

问题是远程站点（https://vehicleenquiry.service.gov.uk）似乎没有处理POST数据并返回查询结果。返回的所有内容都是初始查询表格，就像您没有输入任何表格数据一样。

我希望$ html包含车辆详细信息，税收，运营状态的回复：

而是cURL命令响应返回的查询表单。

1 个答案:

答案 0 :(得分：0)

第一个错误： 

'ctl00$MainContent$txtSearchVrm'=>'$registration_number',
'ctl00$MainContent$MakeTextBox'=>'$vehicle_maker',

应该是：

'ctl00$MainContent$txtSearchVrm'=>$registration_number,
'ctl00$MainContent$MakeTextBox'=>$vehicle_maker,

第二个错误 

$html=hhb_curl_exec2($ch,'https://www.vehicleenquiry.service.gov.uk/Default.aspx',$debugHeaders,$debugCookies,$debugRequest);

应该是：

$html=hhb_curl_exec2($ch,'https://vehicleenquiry.service.gov.uk/Default.aspx',$debugHeaders,$debugCookies,$debugRequest);

整个代码： 

<?php
function dvlascrape($send_array)
{

$make_trimmed=$send_array['2'];
$vrm_strip=$send_array['0'];



function hhb_curl_exec($ch, $url)
{
    static $hhb_curl_domainCache = "";
    //$hhb_curl_domainCache=&$this->hhb_curl_domainCache;
    //$ch=&$this->curlh;
    if (!is_resource($ch) || get_resource_type($ch) !== 'curl') {
        throw new InvalidArgumentException('$ch must be a curl handle!');
    }
    if (!is_string($url)) {
        throw new InvalidArgumentException('$url must be a string!');
    }

    $tmpvar = "";
    if (parse_url($url, PHP_URL_HOST) === null) {
        if (substr($url, 0, 1) !== '/') {
            $url = $hhb_curl_domainCache . '/' . $url;
        } else {
            $url = $hhb_curl_domainCache . $url;
        }
    }
    ;

    curl_setopt($ch, CURLOPT_URL, $url);
    $html = curl_exec($ch);
    if (curl_errno($ch)) {
        throw new Exception('Curl error (curl_errno=' . curl_errno($ch) . ') on url ' . var_export($url, true) . ': ' . curl_error($ch));
        // echo 'Curl error: ' . curl_error($ch);
    }
    if ($html === '' && 203 != ($tmpvar = curl_getinfo($ch, CURLINFO_HTTP_CODE)) /*203 is "success, but no output"..*/ ) {
        throw new Exception('Curl returned nothing for ' . var_export($url, true) . ' but HTTP_RESPONSE_CODE was ' . var_export($tmpvar, true));
    }
    ;
    //remember that curl (usually) auto-follows the "Location: " http redirects..
    $hhb_curl_domainCache = parse_url(curl_getinfo($ch, CURLINFO_EFFECTIVE_URL), PHP_URL_HOST);
    return $html;
}
function hhb_curl_exec2($ch, $url, &$returnHeaders = array(), &$returnCookies = array(), &$verboseDebugInfo = "")
{
    $returnHeaders    = array();
    $returnCookies    = array();
    $verboseDebugInfo = "";
    if (!is_resource($ch) || get_resource_type($ch) !== 'curl') {
        throw new InvalidArgumentException('$ch must be a curl handle!');
    }
    if (!is_string($url)) {
        throw new InvalidArgumentException('$url must be a string!');
    }
    $verbosefileh = tmpfile();
    $verbosefile  = stream_get_meta_data($verbosefileh);
    $verbosefile  = $verbosefile['uri'];
    curl_setopt($ch, CURLOPT_VERBOSE, 1);
    curl_setopt($ch, CURLOPT_STDERR, $verbosefileh);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    $html             = hhb_curl_exec($ch, $url);
    $verboseDebugInfo = file_get_contents($verbosefile);
    curl_setopt($ch, CURLOPT_STDERR, NULL);
    fclose($verbosefileh);
    unset($verbosefile, $verbosefileh);
    $headers       = array();
    $crlf          = "\x0d\x0a";
    $thepos        = strpos($html, $crlf . $crlf, 0);
    $headersString = substr($html, 0, $thepos);
    $headerArr     = explode($crlf, $headersString);
    $returnHeaders = $headerArr;
    unset($headersString, $headerArr);
    $htmlBody = substr($html, $thepos + 4); //should work on utf8/ascii headers... utf32? not so sure..
    unset($html);
    //I REALLY HOPE THERE EXIST A BETTER WAY TO GET COOKIES.. good grief this looks ugly..
    //at least it's tested and seems to work perfectly...
    $grabCookieName = function($str,&$len)
    {
        $len=0;
        $ret = "";
        $i   = 0;
        for ($i = 0; $i < strlen($str); ++$i) {
            ++$len;
            if ($str[$i] === ' ') {
                continue;
            }
            if ($str[$i] === '=') {
                --$len;
                break;
            }
            $ret .= $str[$i];
        }
        return urldecode($ret);
    };
    foreach ($returnHeaders as $header) {
        //Set-Cookie: crlfcoookielol=crlf+is%0D%0A+and+newline+is+%0D%0A+and+semicolon+is%3B+and+not+sure+what+else
        /*Set-Cookie:ci_spill=a%3A4%3A%7Bs%3A10%3A%22session_id%22%3Bs%3A32%3A%22305d3d67b8016ca9661c3b032d4319df%22%3Bs%3A10%3A%22ip_address%22%3Bs%3A14%3A%2285.164.158.128%22%3Bs%3A10%3A%22user_agent%22%3Bs%3A109%3A%22Mozilla%2F5.0+%28Windows+NT+6.1%3B+WOW64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F43.0.2357.132+Safari%2F537.36%22%3Bs%3A13%3A%22last_activity%22%3Bi%3A1436874639%3B%7Dcab1dd09f4eca466660e8a767856d013; expires=Tue, 14-Jul-2015 13:50:39 GMT; path=/
        Set-Cookie: sessionToken=abc123; Expires=Wed, 09 Jun 2021 10:18:14 GMT;
        //Cookie names cannot contain any of the following '=,; \t\r\n\013\014'
        //
        */
        if (stripos($header, "Set-Cookie:") !== 0) {
            continue;
            /**/
        }
        $header = trim(substr($header, strlen("Set-Cookie:")));
        $len=0;
        while (strlen($header) > 0) {
            $cookiename                 = $grabCookieName($header,$len);
            $returnCookies[$cookiename] = '';
            $header                     = substr($header, $len + 1); //also remove the =
            if (strlen($header) < 1) {
                break;
            }
            ;
            $thepos = strpos($header, ';');
            if ($thepos === false) { //last cookie in this Set-Cookie.
                $returnCookies[$cookiename] = urldecode($header);
                break;
            }
            $returnCookies[$cookiename] = urldecode(substr($header, 0, $thepos));
            $header                     = trim(substr($header, $thepos + 1)); //also remove the ;
        }
    }
    unset($header, $cookiename, $thepos);
    return $htmlBody;
}

##############################################################
function hhb_curl_init($custom_options_array = array())
{
    if (empty($custom_options_array)) {
        $custom_options_array = array();
        //i feel kinda bad about this.. argv[1] of curl_init wants a string(url), or NULL
        //at least i want to allow NULL aswell :/
    }
    if (!is_array($custom_options_array)) {
        throw new InvalidArgumentException('$custom_options_array must be an array!');
    }
    ;
    $options_array = array(
        CURLOPT_AUTOREFERER => true,
        CURLOPT_BINARYTRANSFER => true,
        CURLOPT_COOKIESESSION => true,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_FORBID_REUSE => false,
        CURLOPT_HTTPGET => true,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_CONNECTTIMEOUT => 10,
        CURLOPT_TIMEOUT => 11,
        CURLOPT_ENCODING => ""
        //CURLOPT_REFERER=>'example.org',
        //CURLOPT_USERAGENT=>'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0'
    );
    if (!array_key_exists(CURLOPT_COOKIEFILE, $custom_options_array)) {
        //do this only conditionally because tmpfile() call..
        static $curl_cookiefiles_arr = array(); //workaround for https://bugs.php.net/bug.php?id=66014
        $curl_cookiefiles_arr[]            = $options_array[CURLOPT_COOKIEFILE] = tmpfile();
        $options_array[CURLOPT_COOKIEFILE] = stream_get_meta_data($options_array[CURLOPT_COOKIEFILE]);
        $options_array[CURLOPT_COOKIEFILE] = $options_array[CURLOPT_COOKIEFILE]['uri'];

    }
    //we can't use array_merge() because of how it handles integer-keys, it would/could cause corruption
    foreach ($custom_options_array as $key => $val) {
        $options_array[$key] = $val;
    }
    unset($key, $val, $custom_options_array);
    $curl = curl_init();
    curl_setopt_array($curl, $options_array);
    return $curl;
}




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

//Registration and VRM have to be valid and make as per the DVLA format for makes otehrwise this wont work!

$registration_number = 'PK07LVD'; // must be a valid VRM to get the correct response
$vehicle_maker ='BMW'; //Make must matchVRM held with DVLA and entered in same format as DVLA list on site


$ch=hhb_curl_init();

$debugHeaders=array();
$debugCookies=array();
$debugRequest='';

$html=hhb_curl_exec2($ch,'https://www.vehicleenquiry.service.gov.uk/Default.aspx',$debugHeaders,$debugCookies,$debugRequest);
//first do an empty request to get a session id and cookies and the weird VIEWSTATE stuff...
$domd=@DOMDocument::loadHTML($html);
assert(is_object($domd));
$__VIEWSTATE=$domd->getElementById('__VIEWSTATE')->getAttribute('value');
$__VIEWSTATEGENERATOR=$domd->getElementById('__VIEWSTATEGENERATOR')->getAttribute('value');
$__EVENTVALIDATION=$domd->getElementById('__EVENTVALIDATION')->getAttribute('value');

//var_dump('__VIEWSTATE:',$__VIEWSTATE,'__VIEWSTATEGENERATOR:',$__VIEWSTATEGENERATOR,'__EVENTVALIDATION:',$__EVENTVALIDATION,'headers:',$debugHeaders,'cookies:',$debugCookies,'html:',$html,'request:',$debugRequest,'domd:',$domd);
var_dump($__VIEWSTATE);
//now to get the POST stuff
curl_setopt_array($ch,array(
CURLOPT_POST=>true,
CURLOPT_POSTFIELDS=>http_build_query(array(
'__LASTFOCUS'=>'',
'__EVENTTARGET'=>'',
'__EVENTARGUMENT'=>'',
'__VIEWSTATE'=>$__VIEWSTATE,
'__VIEWSTATEGENERATOR'=>$__VIEWSTATEGENERATOR,
'__EVENTVALIDATION'=>$__EVENTVALIDATION,
'ctl00$MainContent$txtSearchVrm'=>$registration_number,
'ctl00$MainContent$MakeTextBox'=>$vehicle_maker,
'ctl00$MainContent$txtV5CDocumentReferenceNumber'=>'',
'ctl00$MainContent$butSearch'=>'Search',
))
));
var_dump(
array(
'__LASTFOCUS'=>'',
'__EVENTTARGET'=>'',
'__EVENTARGUMENT'=>'',
'__VIEWSTATE'=>$__VIEWSTATE,
'__VIEWSTATEGENERATOR'=>$__VIEWSTATEGENERATOR,
'__EVENTVALIDATION'=>$__EVENTVALIDATION,
'ctl00$MainContent$txtSearchVrm'=>$registration_number,
'ctl00$MainContent$MakeTextBox'=>$vehicle_maker,
'ctl00$MainContent$txtV5CDocumentReferenceNumber'=>'',
'ctl00$MainContent$butSearch'=>'Search',
));

$html=hhb_curl_exec2($ch,'https://vehicleenquiry.service.gov.uk/Default.aspx',$debugHeaders,$debugCookies,$debugRequest);
//var_dump(curl_error ( $ch )) ;
//var_dump('headers:',$debugHeaders,'cookies:',$debugCookies,'html:',$html,'request:',$debugRequest);

return $html;






}

var_dump(dvlascrape(array('', '', '')));
?>
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