php script (using curl to visit one website) and get data

php script (using curl to visit one website) and get data. for exmaple i need some data from and url total amounts of data is 200 but on website is shown only 20 by refreshing link all time get mix of data new + old data also the script need refresh until get all 200 data (uniqe). the script need have a page with forms where i will put: 1) link for search 2)amount of uniqe data until will script will work after get amount requested 3) save data in txt 4) print also on page script is easy time for make it done is 1 - 2 hours