Compare arrays, and returns the differences (compare values only, using a user-defined key comparison function) array_udiff_assoc() Compare arrays, and returns the differences (compare keys and values, using a built-in function to compare the keys and a user-defined function to compare the values) array_udiff_uassoc() Compare arrays, and returns the differences (compare keys and values, using two user-defined key comparison functions)
Instagram usage is particularly strong among millennials. This year, there will be 48.2 million millennial Instagram users in the US. By 2019, nearly two-thirds of all millennial smartphone users will use Instagram.
About This Statistic. This statistic gives information on the number of monthly active Instagram users as of December 2016. As of that month, the mainly mobile photo sharing network had reached 600 million monthly active users, up from 500 million in June 2016. The app is one of the most popular social networks worldwide.