In a new posting on Dynamically Typed, Harry talks about the real question everyone wants to know (even more than 'how many servers are using PHP') - Who is using PHP?

The question of who is using PHP has been asked many times. We all know PHP users include everyone from Britney Spears to the UK Labour Party's Big Conversation. In fact Dream Lab Canada maintains a directory of PHP Powered Sites broken down by industry sector.

For me what's more interesting, right now, is looking at where PHP is being used; where is it being deployed (Internet vs. Intranet / Extranet), what problems are people solving with PHP, what design decisions come into play when building a online gallery vs. a groupware tool, how do requirements influence CMS design when comparing an online magazine vs. a corporate Intranet, etc. etc.?

It's a great post and he mentions topics like: user groups not being accounted for/overshadowed by mainstream PHP groups, the "hidden" groups of users/companies using PHP for their Intranet/Extranet applications, and, of course, the underutilization of many of PHP's extensions and functionality.