An expert wouldn't go to W3schools to begin with. They would have far more specific problems that would be better explored on Stack Overflow. A beginner on the

An expert wouldn't go to W3schools to begin with. They would have far more specific problems that would be better explored on Stack Overflow. A beginner on the other hand would have their SO questions locked/closed within minutes because it would likely break any one of the thousand little rules SO has (to reduce duplicates) that are unknown to beginners. Horses for courses; I read the official MDN and PHP docs now, but I didn't when I began because those sites assume an enormous amount of prior knowledge about programming.