diff --git a/examples/sendoauth2.phps b/examples/sendoauth2.phps
index c7c1c4ee..97ed0cdf 100644
--- a/examples/sendoauth2.phps
+++ b/examples/sendoauth2.phps
@@ -11,26 +11,24 @@
  *
  * The wrapper is installed with Composer from the decomplexity/SendOauth2 repo; see its README.
  *
- * The wrapper can also be invoked using less (or even no) arguments; this is for those websites
+ * The wrapper can also be invoked using fewer (or even no) arguments; this is for those websites
  * that use PHPMailer in several places. See the repo for details.
  */
 
+// Import PHPMailer classes
+use PHPMailer\PHPMailer\PHPMailer;
+use PHPMailer\PHPMailer\SMTP;
+use PHPMailer\PHPMailer\Exception;
+// Import SendOauth2B class
+use decomplexity\SendOauth2\SendOauth2B;
+
 // Uncomment the next two lines to display PHP errors
 // error_reporting(E_ALL);
 // ini_set("display_errors", 1);
 
-
 // Load Composer's autoloader
 require 'vendor/autoload.php';
 
-// Import SendOauth2B class into the global namespace
-use decomplexity\SendOauth2\SendOauth2B;
-
-// Import PHPMailer classes into the global namespace
-use PHPMailer\PHPMailer\PHPMailer;
-use PHPMailer\PHPMailer\SMTP;
-use PHPMailer\PHPMailer\Exception;
-
 // Set timezone for SMTP
 date_default_timezone_set('Etc/UTC');
 
@@ -39,8 +37,8 @@ $mail = new PHPMailer(true);
 
 try {
     // Server settings
-    $mail->SMTPDebug = SMTP::DEBUG_OFF;                         // Set DEBUG_LOWLEVEL for SMTP diagnostics
     $mail->isSMTP();                                            // Use SMTP
+    $mail->SMTPDebug  = SMTP::DEBUG_OFF;                        // Set DEBUG_LOWLEVEL for SMTP diagnostics
     $mail->SMTPAuth   = true;                                   // Enable SMTP authentication
     $mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;         // Enable implicit TLS encryption
     $mail->Port       = 587;                                    // TCP port; MSFT doesn't like 465
@@ -50,34 +48,35 @@ try {
     $mail->setFrom('from@example.com', 'Mailer');               // 'Header' From address with optional sender name
     $mail->addAddress('joe@example.net', 'Joe User');           // Add a To: recipient
 
-     /**
+    /**
      * Authenticate
      * Note that any ClientCertificatePrivateKey should include the -----BEGIN PRIVATE KEY----- and
      *  -----END PRIVATE KEY-----
      */
-        
+
     $oauthTokenProvider = new SendOauth2B(
-        ['mail' => $mail,                                                 // PHPMailer instance
-                'clientId'                    => 'long string',           // for Google service account, Unique ID
-                'clientSecret'                => 'long string',           // or null if using a certificate
-                'clientCertificatePrivateKey' => 'ultra long string',     // or null if using a clientSecret
-                'clientCertificateThumbprint' => 'long string',           // or null if using a clientSecret
-                'serviceProvider'             => 'Microsoft',             // literal: also 'Google' or 'GoogleAPI'
-                'authTypeSetting'             =>  $mail->AuthType,        // is set above - or insert here as 'XOAUTH2'
-                'mailSMTPAddress'             => 'me@mydomain.com',       // Envelope/mailFrom/reverse-path From address
-                'refreshToken'                => 'very long string',      // null if grantType is 'client_credentials'
-                'grantType'                   => 'authorization_code',    // or 'client_credentials'
-                
-                'tenant'                      => 'long string',           // MSFT tenant GUID. Null for Gmail
-                
-                'hostedDomain'                => 'mydomain.com',          // Any Google (and optional). Null for MSFT
-                'projectID'                   => 'string',                // GoogleAPI only. Else null
-                'serviceAccountName'          => 'string',                // GoogleAPI service account only. Else null
-                'impersonate'                 => 'you@mydomain.com',      // Google API service account only. Else null
-                                                                          // (Google Wspace email adddress, not @gmail)
-                 ]
+        [
+            'mail' => $mail,                                          // PHPMailer instance
+            'clientId'                    => 'long string',           // for Google service account, Unique ID
+            'clientSecret'                => 'long string',           // or null if using a certificate
+            'clientCertificatePrivateKey' => 'ultra long string',     // or null if using a clientSecret
+            'clientCertificateThumbprint' => 'long string',           // or null if using a clientSecret
+            'serviceProvider'             => 'Microsoft',             // literal: also 'Google' or 'GoogleAPI'
+            'authTypeSetting'             =>  $mail->AuthType,        // is set above - or insert here as 'XOAUTH2'
+            'mailSMTPAddress'             => 'me@mydomain.com',       // Envelope/mailFrom/reverse-path From address
+            'refreshToken'                => 'very long string',      // null if grantType is 'client_credentials'
+            'grantType'                   => 'authorization_code',    // or 'client_credentials'
+
+            'tenant'                      => 'long string',           // MSFT tenant GUID. Null for Gmail
+
+            'hostedDomain'                => 'mydomain.com',          // Any Google (and optional). Null for MSFT
+            'projectID'                   => 'string',                // GoogleAPI only. Else null
+            'serviceAccountName'          => 'string',                // GoogleAPI service account only. Else null
+            'impersonate'                 => 'you@mydomain.com',      // Google API service account only. Else null
+                                                                      // (Google Wspace email adddress, not @gmail)
+         ]
     );
-    
+
 
     $mail->setOAuth($oauthTokenProvider);                                 // Pass OAuthTokenProvider to PHPMailer
     $mail->Host    = 'smtp.office365.com';                                // Set SMTP server (smtp.gmail.com for Gmail)
@@ -91,5 +90,5 @@ try {
     $mail->send();
     echo 'Message has been sent';
 } catch (Exception $e) {
-    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
+    echo 'Message could not be sent. Mailer Error: ' . htmlspecialchars($mail->ErrorInfo, ENT_QUOTES);
 }