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.
Itâs no fad. Just nine months after hitting 200 million users, Instagram now says 300 million people use its photo app every month, with 70% of them coming from outside the US. That makes Instagram officially bigger than Twitter, which had 284 million active users as of six weeks ago.