Why this php code could not send out mail?

Question

I have use this code and try to send out mail. The internet are stable and the server have open.

I have try two version of code:
https://code.sololearn.com/w8Fxkb0kNd0g/#php

Am I omitted anything? Thanks.

Answer 1

For your own security please don't share any kind of personal information (e.g. mail address).

Answer 2

//PHPMailerAutoload.php
->missing file

And this should be run on localhost server to make it actually work not possible pn sololearn code playground