Is it still acceptable to use PHP?

And I don't mean acceptable by /prog/'s  bullshit standards. I mean by your average web developer.

Also, is it acceptable by /prog/'s standards?

I'm a pretty average web developer, so feel capable of answering.

Most definitely. The majority of popular web software used is still in PHP (Wordpress, Drupal, Mediawiki, Menalto gallery, etc.), and in most instances, it's suitable for developing new websites too.

The majority of websites are sufficiently trivial that speed isn't an issue, and the deficiencies of the PHP language don't become apparent. The documentation is decent and it's easy to write websites in, what's not to like?