method isUid documentation in bbn\Str

Checks if the string is a valid UID string.

Str::isUid('22e4f42122e4f42122e4f42122e4f421');
// (bool) true
$this->assertFalse(Str::isUid('22e4f42122e4f4212'));
// (bool) false

function($st)
  {
    return \is_string($st) && (\strlen($st) === 32) && ctype_xdigit($st);// && !mb_detect_encoding($st);
  }