PHP - 用星号替换字符，除非有减号

Question

How can I replace a string with stars except the first and the last letter but not a minus in case there is one. Here for better illustration what I try to get: From: url-name To u**-***e

This is what I have so far:

function get_starred($str) {
        $len = strlen($str);
return substr($str, 0, 1).str_repeat('_', $len - 2).substr($str, $len - 1, 1);
}

Answer 1

hey try implmenting the following:

function get_starred($str) {
  $str_array =str_split($str);
 foreach($str_array as $key => $char) {
  if($key == 0 || $key == count($str_array)-1) continue;
  if($char != '-') $str[$key] = '*';
 }
  return $str;
}