<?php

include "../../vendor/autoload.php";
use Zendesk\API\HttpClient as ZendeskAPI;
/**
 * Replace the following with your own.
 */
$subdomain = "subdomain";
$username = "******";
$token = "6wiIBWbGkBMo1mRDMuVwkw1EPsNkeUj95PIz2akv";
$client = new ZendeskAPI($subdomain);
$client->setAuth('basic', ['username' => $username, 'token' => $token]);
try {
    $query = $client->groups()->findAll();
    foreach ($query as $UserData) {
        echo "<pre>";
        print_r($UserData);
        echo "</pre>";
    }
} catch (\Zendesk\API\Exceptions\ApiResponseException $e) {
    echo 'Please check your credentials. Make sure to change the $subdomain, $username, and $token variables in this file.';
}
<?php

include "../../vendor/autoload.php";
use Zendesk\API\HttpClient as ZendeskAPI;
/**
 * Replace the following with your own.
 */
$subdomain = "subdomain";
$username = "******";
$token = "6wiIBWbGkBMo1mRDMuVwkw1EPsNkeUj95PIz2akv";
$client = new ZendeskAPI($subdomain);
$client->setAuth('basic', ['username' => $username, 'token' => $token]);
try {
    $newGroup = $client->groups()->create(array('name' => '2d line'));
    // Show result
    echo "<pre>";
    print_r($newGroup);
    echo "</pre>";
} catch (\Zendesk\API\Exceptions\ApiResponseException $e) {
    echo 'Please check your credentials. Make sure to change the $subdomain, $username, and $token variables in this file.';
}