Question

I have the code below that is selecting a random set of questions from WordPress.

<?php
    $rows = get_field('step_by_step_test');
    $row_count = count($rows);
    $rand_rows = array();
    $questions = get_field('select_number_of_questions');
    for ($i = 0; $i < min($row_count, $questions); $i++) {
        $r = rand(0, $row_count - 1);
        while (array_search($r, $rand_rows) !== false) {
            $r = rand(0, $row_count - 1);
        }
        $rand_rows[] = $r;
        echo $rows[$r]['question'];
    }
?>

I want to incorporate a bit of extra code (below), how can I make sure it’s selecting the same random question?

<?php if(get_sub_field('answer_options')): ?>
<?php while(has_sub_field('answer_options')): ?> 
    <?php echo the_sub_field('answer'); ?>
<?php endwhile; ?> 
<?php endif; ?>

Answer 1

Why dont you change your approach slightly?

<?php 
   $rows = get_field('step_by_step_test');  // Get the test
   $question_count = get_field('select_number_of_questions');  // Get the number of questions
   $rows = shuffle($rows);   // Randomize your questions
   $rows = array_slice($rows, $question_count);   // Now set the array to only contain the number of questions you wanted
   foreach ($rows as $row) {
       echo $row['question'];    // Show the question
       if(get_sub_field('answer_options', $row['id'])) {
              while(has_sub_field('answer_options', $row['id'])) {
                       echo the_sub_field('answer');
              }
       }
   } 
?>

I made the assumption that you can alter “get_sub_field” to include the ID of the question, so you can then include the ID in your “where” field of “answer_options”. This will allow you to link the question.