recurse_array_change_key_case() recursively returns an array whose string key names are all lowercase or uppercase_PHP tutorial

//Recursively returns an array whose string keys are all lowercase or uppercase
function recurse_array_change_key_case(&$input, $case = CASE_LOWER){
if(!is_array($input))
return;

foreach($input as $key => $val)
{
//1
if($case == CASE_UPPER)
{
              $newkey = strtoupper($key); );
; }
                                                                                                                in $key=>&$val
in foreach recurse_array_change_key_case($input[$newkey], $case);
}
}
}




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//Recursively returns an array whose string key names are all lowercase or uppercase function recurse_array_change_key_case($input, $case = CASE_LOWER){ if(!is_array($input)) return; foreach($input as $key...