@devoutpost unfortunately, Sublime (VS Code and Atom too) is not really an IDE out of the box. In order to get near the functionality of a full blown IDE it relies on community built plugins. So your mileage may vary. I would really not develop software being built with a strongly-typed language on it. Extremely useful to have type resolution and a debugger built in.

@sayopaul It depends what you consider yourself as, a PHP programmer or software engineer. It is always good to be an expert on a single area and also learn to work on others. In your case, I would suggest you embrace working and learning other languages, it might also help your PHP skills. Also, don't listen to the haters, but also bear in mind that every language was usually built with a specific purpose in mind. So weigh the pros and cons of every language.

Cool kids use VS Code nowadays since it's the shiny new thing, but it's not really an IDE; It functions as a supercharged text editor like Sublime. I would try IntelliJ, I believe there is a community version. If you are a student, you can also get an education license for free.

Overall a great reference book, will surely help you in taming the beast that previous devs might have left for you to fix.