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.
Young adults have consistently been the heaviest users of social media by a substantial margin, and today thatâs even more true: a staggering 90% of them use social media, according to a 2015 Pew Research Center study. Thatâs a 78% increase from the 12% who were using social media back in 2005. Another Pew study found that 82% of young adults that are online use Facebook, and about 55% of this crowd uses Instagram, says the Pew study. Rounding out the mediums covered by the report is Twitter, used by about 32% of this population.