getLastKey

Definition

Arr::getLastKey(array $array): int|string|null

Description

Get the last key of the given array without affecting the internal array pointer.

Returns null if array is empty.

Examples

Arr::getLastKey(['a' => 1, 'b' => 2, 'c' => 3]) -> 'c'
Arr::getLastKey([1, 2, 3]) -> 2
Arr::getLastKey([]) -> null