Web Scraper PHP

1) Write a function(s) that does the following: For a given URL, get the source code and output text (as sometimes these differ) Find any emails within and store these in the DB. No duplicates. Find any URLs that are in sub folders only and store them - no duplicates. Also store domains that are not within the given URL. Example url [login to view URL] Store the following: [login to view URL] [login to view URL] [login to view URL] [login to view URL] Do not store: [login to view URL] [login to view URL] [login to view URL] [login to view URL] 2) Write a function that will use the list of domains from the above function as a source and search one at a time according to oldest un-searched first. I'll sort that part, so you write a function for a given URL again. This time it will only store folders found on that domain, no duplicates. This should find the contact page from the home page. Once an email is found, store the email, and mark all entries with that domain as searched. I'll write the rest of the page, create the database tables, and allow the URL to be inserted within a form to initiate the first function. The second function will check every minute or so via CRON to see if there are any domains/URLs needing to be searched and run from there. I have tried creating this before and had some success, I just want to start a fresh. If you know of a better way to do this, I am open to ideas.