Web Scraper PHP Script

we are looking for web scraper php script which will scan web sites products, get the data and then insert and update it into a MySql DB. The scraper shall do the following steps, once a day as a cron job: 1. Scan the site and prepare a list of all his products name or SKUs. 2. Compare the list with existing DB. 3. Adding new products to the DB. 4. Download all product pictures into one directory when each picture name based on the SKU number and the picture number. 5. Update DB fields that had been changed for each existing product. 6. Translate all text fields with Google translator to six languages and add translation to the DB. 7. Changing the IP or the Proxy server in daily basses, in order to avoid blocking from scanned site administrator. 8. Generating Category code for each new category. The DB should contain the following fields: Category name category code category parent code Product Title SKU Price (USD) Quantity Shipping costs (free shipping or not) Overview \ Description (Text) Specification Dimensions Shipping Weight Related products list Status (in stock, out of stock) Delivery time (how many days to delivery, if maintained by the site) Product original web page link Added to DB Date/Time Updated changes in the DB Date/Time Number of total Small pictures Number of total Large pictures Small size pictures path Large size pictures path All pictures shall be added to a directory when each picture has name based on SKU and picture number. the script will be executed on the following sites: [login to view URL] [login to view URL] [login to view URL] [login to view URL] - only free shipping products [login to view URL] [login to view URL] - only free shipping products, Each site should be a different script file so it can be easy to add and remove scanned sites.