Question with16 different responses and only want 2 of the 16 answers to be randomly chosen

Question

Hello, I would like to ask a question with 16 possible answers and have the computer randomly select only 2 questions to ask the user. I've used the following PHP code :
$items = random_items('B019', 2);
question('B019', $items);
But with this code, I don't have the information: which two options were chosen at random. I only know which answer was chosen by the user.

How do I do ?

Thanks

Answer 1

Please use a random generator instead of the random_items() function.

You can tell it to draw 2 codes per interview, the code will look something like this:

show('RG01'); // Use the random generator
$items = array_values(valueList('RG01'));
question('B019', $items);

The random generator will not only store what items have been drawn, but it will also take care that each item is drawn equally often (unless you tell it something else).

Comments

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