How to merge array with result in Codeigniter?

Question

I have this code in Codeigniter, but somehow array_merge does not want to work, how is it possible to merge array to the result?

$categories = $this->get_categories();

    $data = array();

    foreach ($categories as $index) {
        $this->db->select('*');
        $this->db->from('questions');
        $this->db->where('category', $index);
        $this->db->order_by('id','RANDOM');
        $this->db->limit(3);
        $query = $this->db->get();

        array_merge_recursive($data, $query->result());


    }

    return $data;

Murray Wynnes · Accepted Answer · 2016-08-07 19:07:31Z

1

You need to save the result of array_merge_recursive() to the $data string:

$data = array_merge_recursive($data, $query->result());

answered Aug 7, 2016 at 19:07

Murray Wynnes

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2 Comments

gazrobur Over a year ago

Thanks, I've already tried but, is it a must to save into $data, can it be different variable? ex.: $res?

Murray Wynnes Over a year ago

Yes you can, I try to take into account how readable the code is overall, i.e is $data the best variable name for the array of results? or would something like $categoryQuestions make more sense a year from now.

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