How to convert array values to lowercase in PHP?

arrays, lowercase, php, string

Solution

use `array_map()`:

$yourArray = array_map('strtolower', $yourArray);

In case you need to lowercase nested array (by Yahya Uddin):

$yourArray = array_map('nestedLowercase', $yourArray);

function nestedLowercase($value) {
    if (is_array($value)) {
        return array_map('nestedLowercase', $value);
    }
    return strtolower($value);
}

Problem

How can I convert all values in an array to lowercase in PHP? Something like `array_change_key_case`?

Original source