I was playing around with the phalcon extension .ini files on my ubuntu 12.04 installation and see no noticeable difference when I changed 30-phalcon.ini to 20-phalcon.ini or even phalcon.ini after restarting apache. I've noticed that all of my loaded php extensions have some numerical prefix e.g. 10-mysqlnd.ini, 10-pdo.ini, & 20-curl.ini. Out of curiosity, what is the purpose of the numeric prefix on these files?
edit: Ubuntu 12.04 precise x64; php 5.5