title: Zend php set distinct in query
body: <p>how to stop to show duplicate value using zend query pls suggest</p>
  
  <pre><code> public function getProductCategoryById($id) {
          $where = array(
              "product_category_id = ?" =&gt; $id
          );
          $result = $this-&gt;_db_table-&gt;fetchRow($where);
  //        print_r($result);die;
          if (!$result) {
  
              return false;
          }
          $product_category = new Application_Model_ProductCategories($result);
          return $product_category;
      }
  </code></pre>
  
  <p>I am new zend user Iam confuse how to use distinct value in zend pls take a look my code and do changes</p>
  
  <p>Pls assist </p>