In Wordpress, PHP call and Mysq call l which is faster

In Wordpress, PHP call and Mysq call l which is faster than Wordpress
You want to call the corresponding image based on the Category ID
PHP, you want to write a case judgment statement to call
Or write the mysql value, and then write a statement to call it.
About 500 + categories
Which one is faster? thank you.

Reply to discussion (solution)

The maintainability of MySQL naturally prevails.
The query speed depends on your file organization.

If you write 500 cases, you should leave class.

Write only mysql values. isn't it the same?

Of course, mysql is well called.