What are the benefits of using separate functions like mkpic() and mkthumb() instead of combining them into a single function or class?

Using separate functions like mkpic() and mkthumb() allows for better code organization, modularity, and reusability. It also makes the code easier to understand and maintain as each function has a specific and focused task. Additionally, separating the functions can improve code readability and make it easier to test and debug.

function mkpic($image) {
    // code to create a full-sized image
}

function mkthumb($image) {
    // code to create a thumbnail image
}