Craigslist data analyzer

Need to create PHP(+ Javascript, MySQL) script that extract data from Craigslist. It have to consist from two parts: 1) Extract post links I have number of search links for different cities and categories that need to be extracted. Search string consist from this link + fixed query with keywords In this part I need a) have ability to upload first part links in database from .txt file b) set up date range(period) of time, so only between that time ad links will be extracted c) set up dinamicly number of keywords for extract(before press start) d) see live process of exrtracting like: Current link: 3 from 10 Links extracted: ... e) have ability to stop and continue process f) All extracted links should be saved in database. This data should be removed when press Start each time(exept Continue of process) g) download extracted links to .txt file h) delete all duplicate links 2) Extract data from links In this part I need a) have ability to upload links from txt file to database(in this case database should be rewrite) b) save data from each ad links into database, with determinate structure(email, post text, title, date of posting, etc. will be provided) c) see live process and have ability to Stop - Continue it d) have ability to download extracted data e) setup delay time in sec between extracting pages