note 87367 modified in function.array-change-key-case by danbrown

Below is a recursive version of this function. <?php /** * A recursive array_change_key_case function. * @param array $input * @param integer $case */ function array_change_key_case_recursive($input, $case = null){ if(!is_array($input)){ trigger_error("Invalid input array '{$array}'",E_USER_NOTICE); exit; } // CASE_UPPER|CASE_LOWER if(null === $case){ $case = CASE_LOWER; } if(!in_array($case, array(CASE_UPPER, CASE_LOWER))){ trigger_error("Case parameter '{$case}' is invalid.", E_USER_NOTICE); exit; } $input = array_change_key_case($input, $case); foreach($input as $key=>$array){ if(is_array($array)){ $input[$key] = array_change_key_case_recursive($array, $case); } } return $input; } ?> --was-- Below is a recursive version of this function. /** * A recursive array_change_key_case function. * @param array $input * @param integer $case */ function array_change_key_case_recursive($input, $case = null){ if(!is_array($input)){ trigger_error("Invalid input array '{$array}'",E_USER_NOTICE); exit; } // CASE_UPPER|CASE_LOWER if(null === $case){ $case = CASE_LOWER; } if(!in_array($case, array(CASE_UPPER, CASE_LOWER))){ trigger_error("Case parameter '{$case}' is invalid.", E_USER_NOTICE); exit; } $input = array_change_key_case($input, $case); foreach($input as $key=>$array){ if(is_array($array)){ $input[$key] = array_change_key_case_recursive($array, $case); } } return $input; } http://php.net/manual/en/function.array-change-key-case.php