What will be the result of the following operation? ``php $a = array_merge([1,2,3] + [4=>1,5,6]); echo $a[2]; ``

The correct answer is B. 3. See the full explanation below for the reasoning.

Arrays

Question

What will be the result of the following operation?

$a = array_merge([1,2,3] + [4=>1,5,6]);
echo $a[2];

(39 responses)

#array union operator#array_merge#numeric keys#array precedence

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