The plugin allows you to run your code on more than 150 different PHP versions using 3v4l.org.
Read more about the website here and support its author if you like the idea.
To execute a PHP script you just have to right click on the file and select "3v4l();" from the menu. You could also
use the keyboard command `Ctrl + Alt + Shift + E` (default). The plugin will open your browser with the result
of the script on the 3v4l.org website.