arrays

There are times when you create an array based on a stream of incoming data, and in doing so, are blissfully (or not) ignorant of the keys. How do you get the first member from the array in that case?

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Recently, I had the need to determine whether an array had duplicate values in it. It didn't matter what the duplicate values were, or how many duplicates there were, either of which can be answered with array_count_values(), I just needed to know whether there were any at all; a boolean answer.

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