Thank you very much for your replies and comments.
The first thing the whole PHP community is not consisting of seniors most of them are juniors!
These are my personal experiences that I'm sharing with the comunity!
I don't believe a person without a background in coding would able to learn my suggestions in a couple of hours!
* I'm not saying to write the whole code in one line!
* I faced with these problems on many codebases written by mid-levels, juniors, and seniors and I just shared my opinion :)
I'll add some new things to this post maybe you can check it out next week!