title: Zend_Date::toString() outputs the wrong year. Bug in my code, or Zend_Date?
body: <p>I'm using <code>Zend_Date</code> to set and get the year, but it is not being set as the correct year. I set the year as 2010, and it returns the year as 2009. What am I doing wrong? Is there a bug in <code>Zend_Date</code>?</p>
  
  <pre><code>$date = new Zend_Date('2010-01-03', 'YYYY-MM-dd');
  echo $date-&gt;toString('MMMM d, YYYY');
  //outputs January 3, 2009
  </code></pre>
  
  <p>The year must be being set correctly because getting the year part of the date works:</p>
  
  <pre><code>echo $date-&gt;get(Zend_Date::YEAR); //2010
  </code></pre>
  
  <h2>Solution:</h2>
  
  <p>Well I got it to work...You have you use lowercase: <code>yyyy</code></p>
  
  <pre><code>echo $date-&gt;toString('MMMM d, yyyy');
  </code></pre>
  
  <ul>
  <li><code>YYYY</code> stands for the <a href="http://en.wikipedia.org/wiki/ISO_week_date" rel="noreferrer">ISO Year</a>. 2010-01-03 is week 53, day 7 of the ISO year 2009</li>
  <li><code>yyyy</code> stands for the actual calendar year.</li>
  </ul>