I adopted this plugin a while back from a friend. It was closing in on 10,000 active installs and I thought might be fun to tinker with. The code was pretty sloppy as it was from his younger days and he didn’t feel like maintaining it.
I took it over and didn’t do much with it. I added a pretty crappy email the php info feature that didn’t really work well at all. Still, people needed it and it was a first mover so it’s the go to phpinfo() plugin for people.
It hit 20,000 active installs just a few days ago. Well I decided to spice it up a bit. Over the past few evenings I rewrote it from scratch with much better code and WordPress standards. I cleaned up the interface to be much nicer and fine tuned the email info feature to include multiple addresses and work securely.
Check it out here: https://wordpress.org/plugins/wordpress-php-info/