We would like you to develop a PHP file that will allow us to upload a text file containing a large number of urls. For example, 200,000 urls.
The PHP script should accept the txt file upload, add the information to a MySQL database, and then proceed to research the current page rank of each site (from google) and the total number of back-links as reported by Yahoo. The PR and Backlinks should then be added to the database.
Once the script is complete, it should send an email with a text file attached with the results to an admin email account.
The trick to this process is making sure that Google and Yahoo do not stop reporting results to our IP as a result of multiple requests.