Site Scraper with Date Control

We need to scrape content from a particular site and export the content into a MYSQL database. The scraper will need to achieve the following: - Sign into an account using a username and password (given) - Navigate to the transactions page - Search for a date range - Scrape the pages (average of 10 pages a day) of content and bring the information to MYSQL - Each page of the target site is laid out identically - Be scheduled to run, or be run manually - New data is added to the database, not replacing old data - Data is not duplicated when date ranges are overlapped The application (PHP) will be controlled by a web admin (GUI) area and will need the following functionality: - Allow us to control the date ranges for the scraper - Ability to search the database - Ability to display the results in a GUI - Ability to search the database from within the GUI Please bear the following conditions in mind: - We own copyright for the tool - Tool or functionality is not resalable - Bid and completion time are critical factors in this project - Completed tool is to be completely confidential