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zhangxuejiang
6 years ago
I improve the array_change_key_case_recursive function ,let it can lowercase or uppercase keys

function array_change_key_case_recursive($arr, $case = CASE_LOWER)
{
    return array_map(function($item) use($case) {
        if(is_array($item))
            $item = array_change_key_case_recursive($item, $case);
        return $item;
    },array_change_key_case($arr, $case));
}

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