Cases/Skins parser from Steam, OpSkins etc. (PHP or Python)

Make the parser of prices/transactions for cases/skins for CS:GO, Dota 2, Pubg from popular markets (Steam, OpSkins etc.) Parser have to be written on PHP or Python. Parser, will be run with cron (crontab). When starting, it should pull current a) prices, b) deals (date + time + fact of purchase or sale + transaction price) on Skins, Knives, Cases, Stickers with Steam for CS:GO, Dota 2, Pubg. Pulled data should be written to the MySQL database. Based on this data, graphs will be generated (you do not need to do the graphics yourself, only save data for them in the database): Please give the total price or separate prices for different games (CS: GO, Dota 2, Pubg) and markets (Steam, OpSkins etc.).