[php] - alphabetizing

Hello, I was just typing a msg and accidentally hit send before I could finish.. sorry.. I have a file, its contents are as follows: Name of person1, string1 Name of person2, string2 Name of person3, string3 Name of person4, string4 Name of person5, string5 I want to alphabetize the list from A-Z (using the first column as the primer key). I was planng on using an array, but I would have to use a 2 dimensional array and I am not too swift on those.. Thanx, Ray..