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 most popular social media sites used by teenage and young adult internet users in the United States as of February 2017. During the survey period, it was found that 73 percent of responding internet users aged 13 to 24 used social photo sharing app Instagram.