array_mystery0

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Language/Type: PHP array mystery arrays

Consider the following function:

function array_mystery0($arr) {
    for ($i = 1; $i < count($arr); $i++) {
        $arr[$i] = $arr[$i] + $arr[$i - 1];
    }
    return $arr;
}

For each array below, indicate what the returned array's contents would be after the function array_mystery0 were called and passed that array as its parameter.

`[8]`
`[6, 3]`
`[2, 4, 6]`
`[1, 2, 3, 4]`
`[7, 3, 2, 0, 5]`

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array_mystery0