I'm a big fan of PHP for myself. But I've seen enough of PHP script kiddies out there making nearly free (as in beer) websites/webapps. They become a mess in no time.

Mostly hacking phpnuke, joomla or some other messy portals. Hacked sites mostly never get any security updates or any kind. But employers having free work done are ok with this scheme so more and more script kiddies emerge.

Also there is not much thing going on PHP nowadays. Maybe PHP is at peek for it's purpose - doing web apps easy and quickly.