strange behaviour ternary operator [closed]

Answer 1

I'm not sure exactly why you chose to use this form of syntax, as mentioned in a comment, this would be a nightmare to debug... A switch case might be a better choice here -

$vehicle = '';
switch($transport){
  case 'B' :
    $vehicle = 'bus';
  break;
  case 'A' :
    $vehicle = 'airplane';
  break;
  ...
  default:
   // undefined cases
  break;
}

References -

• switch statement