How do PHP developers make money?

I am trying to ea money from my PHP skills. I have tried many ways like selling on Codester and creating a gig on Fiverr. I also have developed my own website and tried to sell a couple on Flippa, but I haven't made a lot of money.

How do you guys make money as PHP developers?

I love building websites from scratch. I am very good with HTML, CSS, JS, PHP and MySQL.

I want to show you some of my work and you can tell me if I am good enough for the market ...
Here is my portfolio on...

How do PHP developers make money? WordPress ...