报告在进入日期为时间戳的情况下销售的产品数量

I have a product table with product_id and entry_date field (which is varchar and have timestamp value by time() function in php). I want to get result of how many products have been uploaded per week. Please tell me the SQL so that I can get the result of how many products have been uploaded per week.I have a product table with product_id and entr