**This was a poorly worded question**

My main goal was to display many images or even a range from a set arbitrarily, renaming the files to sequential numbers seemed like it would make the displaying or iterating through the files easier if they just differed by 1 rather than random strings.

-- anyway I'm going to read... seems glob is according to php manual ... **The glob() function searches for all the pathnames matching pattern according to the rules used by the libc glob() function**

The files have random names but they are all .jpg's

As an example, "this name".jpg is replaced with "i+1".jpg

So that I can display the photos lazily using a for loop incrementing the numbers. The primary purpose is to display the photos regardless of their file names.