Open-Source and Free Software with free Plugins available,
Doesn't Support PHP.
Furthermore, Brackets also offers you Live Preview. SO, if you are working on a code. And, you need to see it in the browser. Then, you can see it. Moreover, in case, you make any changes to the code. Then, it will directly change in the browser. This will help you in fast testing and trying out your desire works. Also, it will increase your efficiency as well. There are a lot of plugins available which you can use in it. And, there are new plugins weekly.