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KEY

Fetch a key from an array

SYNTAX

key ( array $array ) : mixed

PARAMETERS

array

The array.

RETURN

The key() function simply returns the key of the array element that's currently being pointed to by the internal pointer. It does not move the pointer in any way. If the internal pointer points beyond the end of the elements list or the array is empty, key() returns NULL.

EXAMPLES

1

a

2

b

3

abcde

4

fruit1
fruit4
fruit5

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