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17 years ago
I just changed the code a little bit so you havent got a code that repeats itself.

<?php

function array_change_key_case_secure($array = array(), $case = CASE_UPPER){
    $secure = array();
    $functionWrap = array(CASE_UPPER => 'strtoupper',
                            CASE_LOWER => 'strtolower');
                            
    foreach($array as $key => $val){
        if(isset($functionWrap[$key])){
            $key = $functionWrap[$case]($key);
            $secure[$key][] = $val;
        } else {
            die('Not a known Type');
        }
    }
    
    foreach($secure as $key => $val){
        if(count($secure[$key]) == 1){
            $secure[$key] = $val[0];
        }
    }
    
    return $secure;
}

$myArray = array('A' => 'Hello',
                    'B' => 'World',
                    'a' => 'how are you?');

print_r($myArray);
$myArray = array_change_key_case_secure($myArray);
print_r($myArray);

/*
Array
(
    [A] => Hello
    [B] => World
    [a] => how are you?
)
Array
(
    [A] => Array
        (
            [0] => Hello
            [1] => how are you?
        )

    [B] => World
)
*/
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