Intersect unknown number of arrays in PHP

Question

I\'m trying to intersect an arbitrary number of PHP arrays, the count of which depends on a user provided parameter, each of which can have any number of elements.

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Answer 1

Use the splat operator (...) as in: array_intersect(...$arrayOfArrays) or interchangeably call_user_func_array.

It's in the code in this tutorial: https://www.youtube.com/watch?v=AMlvtgT3t4E