In the Simple PHP Library (SPL for those close to you), there are classes and interfaces that allow you to simply browse folders and files. It is even possible and very simple to create a filter that allows you to narrow the result.
Programming language PHP (page 3/3)
I learned software programming with PHP language. This language evolve a lot and I'm usig it for +20 years. In these posts I'm talking about basic stuff but also some more advanced and ready to use solution, with most of the time real world usage.
Importing or exporting data in CSV format is a classic for a business application or a back office. Little known, the Standard PHP Library makes it easy to manipulate CSV files whether read or write via the SplFileObject class.