Where to put the helper for my library?

Question

PHP

I am developing a library. It can be used both separately and with frameworks. There are a couple of functions that are often used in my lib. Where is the best place to put them? Somehow I don’t want to connect a third-party package because of a small function. And litter the global space too.

Answer 1

You can put functions in a separate namespace and connect them via composer.json in the autoload/classmap section.

Answer 2

For this purpose they came up with Traits
PS
In general, it is not clear what is "There are a couple of functions that are often used in my lib. Where is it better to put them?"
Are the functions dependent on the library?