How to connect email to landing page?

Question

PHP

Good evening everyone!
Need help, or rather guidance on the true path. I got myself a template on wrapbootstrap for my portfolio ... Now I've been sitting for an hour and poking around. I can't set up mail/feedback.
In other words, there is a form, a personal mail on Yandex, which I am trying to attach, and a file with a code where everything seems to be written. BUT! Damn, he doesn't want to work in my hands.
Can anyone post a link to something like this? Thanks in advance. All good.
Ps after entering the necessary data, a white page appears with: 405 Not Allowed
nginx/1.10.2 I
tried to enter here:

require 'PHPMailer/PHPMailerAutoload.php';

$host = 'YOUR_HOST';

$username = '[email protected]';

$password = 'YOUR_PASSWORD';

Answer 1

<?php
$to      = '[email protected]';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: [email protected]' . "\r\n" .
    'Reply-To: [email protected]' . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);

Taken from official documentation