PHP array_change_key_case Function

Definition and Usage

The array_change_key_case() function changes all keys in an array to lowercase or uppercase.

Syntax

    array_change_key_case(array, case)

Parameter Values

Parameter	Description
array	Required. Specifies the array to use
case	Optional. Possible values: CASE_LOWER - Default value. Changes the keys to lowercase CASE_UPPER - Changes the keys to uppercase

 

Examples :

Here is another Example for lower_case :