PHP is just a tool that makes it very easy to create quick websites using logic directly in html. I totally agree that this is a bad practice and should be avoided. This is why it attracted a lot of script kiddies at its beginning.
On the othr hand, according to Wikipedia ( http://en.wikipedia.org/wiki/Brogrammer ) a "brogrammer" is a social programmer, normally attracted in hacking jobs at startups. Therefore, I believe PHP doesn't attract "brogrammers" since most startups do not work with PHP anymore. I believe new languages attracts more "brogrammers" than PHP.
PS: Please keep in mind that, nowadays, there are a lot of good programmers that write clean PHP code. Just have a look at the Symfony2 code source.
https://news.ycombinator.com/newsguidelines.html