title: Unknown column 'Array' in 'where clause' -database error
body: <pre><code>public function count_category_images($p_id)
  {
  $this-&gt;db-&gt;select('gallery.*','category.category_name');
  $this-&gt;db-&gt;join('category', 'category.id = gallery.category_id');
  $this-&gt;db-&gt;order_by('gallery.id','desc');
  $this-&gt;db-&gt;where('category.id',$p_id); 
  
  return $this-&gt;db-&gt;count_all_results('gallery');//line no 81
  }
  </code></pre>
  
  <p>am getting this error </p>
  
  <blockquote>
    <p>Error Number: 1054 Unknown column 'Array' in 'where clause'</p>
  </blockquote>
  
  <pre><code>SELECT
      COUNT(*) AS `numrows`
  FROM
      `gallery`
  JOIN `category` ON `category`.`id` = `gallery`.`category_id`
  WHERE
      `category`.`id` = `Array`
  ORDER BY
      `gallery`.`id` DESC
  </code></pre>
  
  <p><strong>Filename: C:/wamp64/www/rox/application/models/roxmodel.php</strong></p>
  
  <p>Line Number: 81</p>