getLastKey

Definition
1
Arr::getLastKey(array $array): int|string|null
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Description
Get the last key of the given array without affecting the internal array pointer.
Returns null if array is empty.
Examples
1
Arr::getLastKey(['a' => 1, 'b' => 2, 'c' => 3]) -> 'c'
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Arr::getLastKey([1, 2, 3]) -> 2
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5
Arr::getLastKey([]) -> null
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