FULLTEXT search codeigniter

[eluser]Unknown[/eluser]
Hi guys, I am trying to create a full text search for my site but am having little luck.

I have created a FULLTEXT index in my MySQL db (storage type MyISAM). The FULLTEXT index contains the following fields 'title,intro,content'.

I have then proceeded to create my MVC for the search. Code is as follows:

View

Code:

<?php echo form_open('search'); ?>
<?php echo form_label('Search:', 'search-box'); ?>
<?php echo form_input('searchquery', 'searchquery'); ?>
<?php echo form_submit('search', 'Search'); ?>
<?php echo form_close(); ?>

//echo search results
   <?php foreach ($searchcontent as $s): ?>
                <?php echo $s['title']; ?>
                <?php echo $s['intro']; ?>
                <?php echo $s['content']; ?>    
            <?php endforeach; ?>

Controller

Code:

class Search extends CI_Controller {
    
    public function index()
    {

//Content model is autoloaded    
  
         if ($this->input->post('searchquery'))
        {
        //Get data from content where page = $page
        $searchquery =  $this->input->post('searchquery');
        $viewdata['searchcontent'] = $this->Content_model->search($searchquery);
        $this->load->view('search',$viewdata);
        }
        else ($this->load->view('search'));    
    
    }
    
}

Model

Code:

function search($searchquery)
    {
        // Execute our SQL statement and return the result
        $sql = "SELECT title,intro,content
                    FROM content
                    WHERE MATCH (content) AGAINST (?) > 0";
        $query = $this->db->query($sql, array($searchquery, $searchquery));
        
        foreach ($query->result() as $row) {
        $searchquery[] = array(
            'title' => $row->title,
            'intro' => $row->intro,
            'content' => $row->content
        );
    }

    return $searchquery;
        
    }

I can't seem to retrieve any search results with the above, is there something wrong with the code, is there any documentation on performing the above?