Php - Is it bad if I have places where the path (string with the path) is repeated? For example "files/images/"? Or is it ok?

Question

PHP

Should I put this in a separate function (in the model - I have MVC - get_path_images(), for example)? Or leave it like this - many places (classes) where the same line is repeated to indicate the path?
And further. Here I, for example, scored in the function getting a string with a path. And in other places I have the code repeated, where the line with the path + one more line (one directory) is used. But only one. Do I also need to create another function? For example, the first function returns:
files/images/
And then there are places where this path is used:
files/images/128x128/ Should
I also create a function for this? Only one directory has been added.

Answer 1

It's generally bad when there is text inside the logic code!
All paths (and settings) must be in the variable store and they must all be unique.
If paths are made up of several variables through their concatenation ($a.$b. etc.) - a hierarchical "tree" must be formed.