php CURL problem

Local wamp environment, configure virtual machine, demo.com.
Two controllers want to use the method in TestA to request the method in TestB, and then see the return value. But the result was not what I wanted.
Which expert can help me point out the error? ? ? Greatful! ! !

The following is the code

<code class="php">class TestA
{
    public function actionPost()
    {
        $url = 'dsp.com/Testb/Require_post';
        $data = array(
            'name' => 'ethan',
            'gender' => 'male',
        );
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER,1);  
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
        curl_setopt($ch, CURLOPT_POST,1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);      
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
    
        $result = curl_exec($ch); 
        curl_close($ch);      
        print_r($result);
    }
}


class TestB
{
    public function actionRequire_post()
    {
        $post = $_POST;
        print_r($post);
    }
}</code>

The following are the returned results

<code>string 'HTTP/1.1 302 Found
Date: Wed, 03 Aug 2016 07:38:51 GMT
Server: Apache/2.4.9 (Win32) PHP/5.5.12
X-Powered-By: PHP/5.5.12
Set-Cookie: PHPSESSID=v4hpec5krlhgq17r1oehoo6md6; path=/; HttpOnly
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
Location: http://dsp.com/Index/Index
Content-Length: 0
Content-Type: text/html

' (length=413)</code>