如何根据PHP中的菜单/用户语言保留产品选项

I'm working on the php code of someone else and have a problem with the user/menu language. This is the code of the page with the dynamic price list for banner ads on this website. Depending on the selected menu language, the user can see the price of the banner ads which are for each menu language different.I'm working on the php code of someone else and