title: Form_Dropdown() in Codeigniter
body: <p>I need help on how to use the form_dropdown in Codeginiter project.</p>
  
  <p>View file: my_test.php code as this,</p>
  
  <pre><code>&lt;?php
      // basic filter form
      $attributes = array('class' =&gt; 'formstyle', 'id' =&gt; 'myfilterform');
      echo form_open('mytest/send', $attributes);
      $options = array(
                    'all'  =&gt; 'Pls Select Filter',
                    'male'    =&gt; 'Male List',
                    'female'   =&gt; 'Female List',
                  );
      echo form_dropdown('myfilter', $options, 'male');  
      echo form_submit('myfiltersubmit', '   GO  ');
      $string = "&lt;/div&gt;&lt;/div&gt;";
      echo form_close($string);
  ?&gt;
  </code></pre>
  
  <p>Controllers file mytest.php code as this,</p>
  
  <pre><code>function index()
  {
      $data['title'] = "Hello";
      $this-&gt;load-&gt;view('my_test', $data);
  }
  
  function send()
  {
          $mypostdata = $_POST['options'];  // I can't get the post data here.
          echo $mypostdata;
  }
  </code></pre>
  
  <p>I did read the form_dropdown portion on CI UserGuide. unfortunately I didn't find how to handle post data in <code>send()</code>. Thanks.</p>