有没有人使用过Requests for PHP?-PHP中文网问答

POST http://10.18.32.78/nps/login.action HTTP/1.1
Host: 10.18.32.78
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: http://10.18.32.78/nps/login_view.action;jsessionid=9DC8C0E7A12FF26279DB8123088C6DC6
Cookie: JSESSIONID=9DC8C0E7A12FF26279DB8123088C6DC6
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 34

userName=092312123&password=123456

上面是用fiddler抓到的
下面是我的代码

require './Requests-1.6.0/library/Requests.php';
Requests::register_autoloader();

$url = 'http://10.18.32.78/nps/login.action';
$headers = array(
    'Host' => '10.18.32.78',
    'User-Agent' => 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0',
    'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Accept-Language' => 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',
    'Accept-Encoding' => 'gzip, deflate',
    'Referer' => 'http://10.18.32.78/nps/login_view.action;jsessionid=9DC8C0E7A12FF26279DB8123088C6DC6',
    'Cookie' => 'JSESSIONID=9DC8C0E7A12FF26279DB8123088C6DC6',
    'Connection' => 'keep-alive',
    'Content-Type' => 'application/x-www-form-urlencoded',
    'Content-Length' => '34'
);

//var_dump($headers);
$options = array();
$data = array(
    ''=>'userName=092312123&password=123456'
);

// Now let's make a request!
$request = Requests::post($url, $headers, $data);

下面是运行的结果

string '
<html>
<head>
    <title>东软睿道睿鼎教学实训平台 - </title>
    <link href="/nps/css/default.css" rel="stylesheet" type="text/css">
    <script language="javascript" src="/nps/js/jquery.js"></script>
    <script language="javascript" src="/nps/js/jquery.selectboxes.js"></script>
    <script language="javascript" src="/nps/js/common.js"></script>
    <script language="javascript" src="/nps/js/init.js"></script>
    <meta http-equiv="Content-type" content="text/html; charset=utf-8">
    
</head>
<body >
<s'... (length=2212)

请问为什么显示的不全呢