Question possible error

[tony5Dim]

Hi!
In arrays.yml l.59

question: 'If you wanted a variable containing the letters A through Z, that allowed you to access each letter independently, which of the following approaches could you use?'
answers:
- {value: "$str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';", correct: true}
- {value: "range('A', 'Z');", correct: true}
- {value: 'explode("", "ABCDEFGHIJKLMNOPQRSTUVWXYZ");', correct: false}
- {value: 'You would use the ALPHA_ARRAY constant', correct: false}
- {value: 'None of the above', correct: false}

Does the answer

$str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';

is correct ? Since we can't access each letter independently...

[xabbuh]

You can access them the same way as array elements:

$letter = $str[$position];

[tony5Dim]

Good thing I've posted this. I've learned something.