I think this is the wrong approach. The guy should try to convince me that PHP is bad. That PHP has never not did what I wanted it to do. That I need to invest time and switch to some other language because it's better for my needs and purposes, and the switch will quickly get me to a level of expertise that I have with PHP now. The fact of the matter is PHP is ugly and that's really it. I can live with ugly because…
It goes both ways: he has tried to do certain things with PHP and made his life miserable; you've done certain things with PHP that made your life easier.
Telling each other which is which will let the one know what to avoid and the other one what's he doing wrong.
Anyway, it's about time we started thinking and being more mature than 'my language is better than yours'. Which is why I hate all similar postings and articles which aim to enlighten me On the Amazing Features Of Language X (or the opposite).