sorting an array

[Anon]

Hi..
I am reading the following file into an array

Name-Grade-Room

Sart, Joe 8 1016
Doe, John 7 659
Notas, Mariangela 3 1504
Zeph, Mike 8 866
Dept, Franc 6 862

I need to then sort the array alphabetically by last name and also descending by rating. For some reason I can't do this.

Can someone please help me with the code. I am new to PHP and would appreciate it.

Thanks
Alex

[Anon]

Also please remember the names have to remain with their corresponding grade and room assignments

thanx