Create user by api xenforo

<?php
   $new_user = [
        'username'=> usernamex1,
        'email'=> email1@gmail.com,
        'password'=>'abc123',
        'api_bypass_permissions' => 1
   ];

    $new_user =  http_build_query($new_user);
    $curl = curl_init();

    curl_setopt_array($curl, array(
      CURLOPT_URL => 'https://domain.com/api/users/',
      CURLOPT_RETURNTRANSFER => true,
      CURLOPT_ENCODING => '',
      CURLOPT_MAXREDIRS => 10,
      CURLOPT_TIMEOUT => 0,
      CURLOPT_FOLLOWLOCATION => true,
      CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
      CURLOPT_CUSTOMREQUEST => 'POST',
      CURLOPT_POSTFIELDS => $new_user,
      CURLOPT_HTTPHEADER => array(
        'XF-Api-Key: xxxxxx',
        'Content-Type: application/x-www-form-urlencoded'
      ),
    ));

    $response = curl_exec($curl);
echo '<pre>';
print_r($response);
echo '</pre>';
    curl_close($curl);
    echo $response;