randomise combined questions.

Question

I am trying to randomize combined questions. Unfortunately it is not working, I have the following code:

$a = array(question('RC01', 'combine=RC40', 'gap=line'),  
question('RC03', 'combine=RC50', 'gap=line'),
question('RC04', 'combine=RC51', 'gap=line'),
question('RC06', 'combine=RC48', 'gap=line'),
question('RC05', 'combine=RC37', 'gap=line'), 
question('RC07', 'combine=RC49', 'gap=line'),
question('RC08', 'combine=RC52', 'gap=line'),
question('RC09', 'combine=RC53', 'gap=line'),
question('RC10', 'combine=RC42', 'gap=line'), 
question('RC11', 'combine=RC54', 'gap=line'),
question('RC12', 'combine=RC55', 'gap=line'),
question('RC24', 'combine=RC43', 'gap=line'),  
question('RC25', 'combine=RC56', 'gap=line'),
question('RC26', 'combine=RC57', 'gap=line'),
question('RC28', 'combine=RC58', 'gap=line'),
question('RC29', 'combine=RC59', 'gap=line'),
question('RC20', 'combine=RC41', 'gap=line'),  
question('RC27', 'combine=RC44', 'gap=line'),  
question('RC35', 'combine=RC60', 'gap=line'),
question('RC36', 'combine=RC61', 'gap=line'),
question('RC34', 'combine=RC45', 'gap=line')); 

shuffle($a);

$a[0];
$a[1];
$a[2];
$a[3];
$a[4];
$a[5];
$a[6];
$a[7];
$a[8];
$a[9];
$a[10];
$a[11];
$a[12];
$a[13];
$a[14];
$a[15];
$a[16];
$a[17];
$a[18];
$a[19];
$a[20];

Could someone please help?

Answer 1

Please be sure NOT du put the question() function into your array, but only the question IDs.

Would you like to display all questions on the same page or on different pages?

Here's some PHP code to start with:

$questions = [
  ['RC03', 'RC50'],
  ['RC04', 'RC51'],
  // ...
];
if (!isset($order)) {
  $order = array_keys($questions);
  shuffle($order);
  registerVariable($order);
}
$i = loopPage($order);
question($questions[$i], 'gap=line');

Comments

Thank you so much! That was very helpful! And it is working.
I just need them to be on one page.
What do I have to change?

---

Please replace

$i = loopPage($order);
question($questions[$i], 'gap=line');

by this PHP code

foreach ($order as $i) {
  question($questions[$i], 'gap=line');
}

---

You have been such a big help! Thank you so much!!