Error in example: Send Multiple Emails with Personalizations

[muniodiego]

I have used the following example: https://github.com/sendgrid/sendgrid-php/blob/main/USE_CASES.md#send-multiple-emails-with-personalizations

<?php
// Uncomment next line if you're not using a dependency loader (such as Composer)
// require_once '<PATH TO>/sendgrid-php.php';

use SendGrid\Mail\From;
use SendGrid\Mail\Mail;
use SendGrid\Mail\Personalization;
use SendGrid\Mail\Subject;
use SendGrid\Mail\To;

$from = new From("test@example.com", "Twilio Sendgrid");
$to = new To(
    "test+test1@example.com",
    "Example User1",
    [
        '-name-' => 'Example User 1'
    ],
    "Example User1 -name-"
 );
$subject = new Subject("Hello from Twilio Sendgrid!");
$plainTextContent = new PlainTextContent(
    "How's it going -name-?"
);
$htmlContent = new HtmlContent(
    "<strong>How's it going -name-?</strong>"
);
$email = new Mail($from, $to, $subject, $plainTextContent, $htmlContent);

$personalization0 = new Personalization();
$personalization0->addTo(new To(
        "test+test2@example.com",
        "Example User2",
        [
            '-name-' => 'Example User 2'
        ],
        "Example User2 -name-"
));
$personalization0->addTo(new To(
        "test+test3@example.com",
        "Example User3",
        [
            '-name-' => 'Example User 3'
        ],
        "Example User3 -name-"
));
$personalization0->setSubject(new Subject("Hello from Twilio Sendgrid!"));
$email->addPersonalization($personalization0);

$personalization1 = new Personalization();
$personalization1->addTo(new To(
        "test+test3@example.com",
        "Example User4",
        [
            '-name-' => 'Example User 4'
        ],
        "Example User4 -name-"
));
$personalization1->addTo(new To(
        "test+test4@example.com",
        "Example User5",
        [
            '-name-' => 'Example User 5'
        ],
        "Example User5 -name-"
));
$personalization1->addFrom(new From(
    "test5@example.com" => "Twilio"
))
$personalization1->setSubject(new Subject("Hello from Twilio!"));
$mail->addPersonalization($personalization1);

$sendgrid = new \SendGrid(getenv('SENDGRID_API_KEY'));
try {
    $response = $sendgrid->send($email);
    print $response->statusCode() . "\n";
    print_r($response->headers());
    print $response->body() . "\n";
} catch (Exception $e) {
    echo 'Caught exception: '.  $e->getMessage(). "\n";
}

The emails are sent, but for each Personalizations (test+test2@example.com, test+test3@example.com, ..., test+test4@example.com) the "-name-" tokens are not replaced neither in the content nor in the subject. The token is replaced correctly for the email to "test+test1@example.com".

In conclusion, token replacement does not work in Personalizations.