WordPress at a glance
function is not described

PHPMailer\PHPMailer

SMTP::getDebugOutput() public WP 1.0

Get debug output method.

{} It's a method of the class: SMTP{}

No Hooks.

Return

String.

Usage

$SMTP = new SMTP();
$SMTP->getDebugOutput();

Code of SMTP::getDebugOutput() WP 5.7.2

<?php
public function getDebugOutput()
{
    return $this->Debugoutput;
}