I was attempting to sort some strings in an array alphabetically. The strings were file names I grabbed from a directory using glob. At first, I thought glob was incorrectly sorting the file names. I tried sort, and the same thing happened:
var_dump("11-09-2016/1874S/1874S-O.jpg" > "11-09-2016/1874S/1874S.jpg");
. is greater than
Those are the first non-equal characters in your strings.