Send emails using gmail SMTP and PHPMailer

send-email.php

<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
require '../vendor/autoload.php';

function sendemail($para, $nombre, $cuerpo, $asunto) {
	$mail = new PHPMailer;
	$mail->isSMTP();
	$mail->SMTPDebug = 2;
	$mail->Host = 'smtp.gmail.com';
	$mail->Port = 587;
	$mail->SMTPSecure = 'tls';
	$mail->SMTPAuth = true;
	$mail->Username = "guillac124@gmail.com";
	$mail->setFrom('guillac124@gmail.com', 'Comercio IT');
	$mail->addReplyTo('noreply@educacionit.com', 'No Reply');
	$mail->addAddress($para, $nombre);
	$mail->Subject = $asunto;
	$mail->Body = $cuerpo;
	$mail->AltBody = 'This is a plain-text message body';
	if (!$mail->send()) {
	    echo "Mailer Error: " . $mail->ErrorInfo;
	} else {
	    echo "Message sent!";
	}
}