351783 simple zip-code script

I need a simple php/mysql zip-code lookup script which compares zip codes of a mysql database with zip codes of 2 csv files under specified criteria. If a zip-code does not match, a mysql query should be done. The script should be run by a cronjob. All mismatches should be logged in a .txt log file. I need the script asap - meeting the deadline (your time-frame) is a must. If I`d like to choose your bid, I`ll send you full details first and you have to confirm.