Demonstrate how to get help center articles using the php client

- Note that this will not work unless you enable help center for your account
- Indicate such in error handling as well as other standard cause due to
  incorrect credentials
- Evidently token access is the supported approach

samples/articles/getArticles.php

@@ -0,0 +1,24 @@
+<?php
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+use Zendesk\API\HttpClient as ZendeskAPI;
+
+$subdomain = "subdomain";
+$username  = "email@example.com"; // replace this with your registered email
+$token     = "6wiIBWbGkBMo1mRDMuVwkw1EPsNkeUj95PIz2akv"; // replace this with your token
+
+$client = new ZendeskAPI($subdomain);
+$client->setAuth('basic', ['username' => $username, 'token' => $token]);
+
+$help_center = new Zendesk\API\Resources\HelpCenter($client);
+
+try {
+    $query = $help_center->articles()->findAll();
+    foreach ($query as $UserData) {
+        echo "<pre>";
+        print_r($UserData);
+        echo "</pre>";
+    }
+} catch (\Zendesk\API\Exceptions\ApiResponseException $e) {
+    echo 'You may either have not enabled Help Center or you may have entered incorrect credentials. Make sure to change the $subdomain, $username, and $token variables in this file.';
+}