title: How to add default value in cakephp select option?
body: <p>I want to add default select option in input field 
  For example if I right this code </p>
  
  <pre><code>echo $this-&gt;Form-&gt;input('field', array(
      'options' =&gt; array(1, 2, 3, 4, 5),
      'empty' =&gt; '(choose one)'
  ));
  </code></pre>
  
  <p>I want to change this code like </p>
  
  <pre><code>echo $this-&gt;Form-&gt;input('field', array(
      'options' =&gt; array(1, 2, 3, 4, 5),
      'default' =&gt; options[1];  // it's not correct, I just want to add 2 as a default value.
  ));
  </code></pre>
  
  <p>Here I want to add option 2 as a default value.</p>