I am currently making a website.
And I would like to give users the opportunity to send emails here. But I have a problem that I can’t solve. I wrote the following program for email.

use PHPMailerPHPMailerPHPMailer;

require ’r/src/Exception.php';
require r/src/PHPMailer.php';
require r/src/SMTP.php';

$mail = new PHPMailer();

$mail->isSMTP();
$mail->Host = ’*;
$mail->SMTPAuth = true;
$mail->Username = *;
$mail->Password = *;
$mail->SMTPSecure = 'tls';
$mail->Port = 465;
$mail->setFrom(*, 'First Last');

$mail->addAddress(*, 'First Last');

$mail->Subject = 'PHPMailer mail() test';
$mail->isHTML(TRUE);
$mail->Body = 'html>';


if(!$mail->send()){
    echo 'Message could not be sent.';
    echo 'Mailer Error: ' . $mail->ErrorInfo;
} else {
    echo 'Message has been sent';
}

But the $mail->send() function never executes. It does not return an error, but the program stops here.

Does anyone have any idea what the problem could be?

I tried to run the program with the debugger, but it keeps getting stuck at the mail.send line.