I use PHP. Mostly Notepad++, or vim if I'm sshed into something for a quick task.
I tend to prefer PHP because it's still by far the leader in terms of "I have a random code-base (usually inherited from client) and random hosting (also inherited, or they insist on using a vendor that had a slick sales pitch). Odds are they will work without too much hassle."
I still recall one client project we had-- half-baked, written in Ruby, and came with a 45-step "how to set up a test environment" guide that involved setting up Vagrant images and posting stuff up and down to Github to deploy. The only way to get it to even behave as a test environment was to set up a Linux install on a spare desktop, and the site was so badly designed and the virtual machine configuration they used so awful resulted in it literally taking 30 seconds to load a page, with test data, on a local machine.
We said "we're spending longer waiting on page loads than actually developing" and just wrote a new PHP site that talked to their old database, because it let us finish in half the time.
I did my degree programme in Java and have used it about three times since then. One client insisted on an applet being written, basically, because we needed to scan a user's local filesystem for things we wanted them to upload. Never mind that the market penetration of the Java plugin is at -3% and dropping.
