title: captcha image in zend framework
body: <p>I have the following code,but what I got is broken link ! I have installed GD library and the proper font ! but nothing work ,so how to I can use image captcha in zendframework without broken link ,what the wrong ?</p>
  
  <pre><code>$captcha = new Zend_Form_Element_Captcha('Captcha',array(
          'captcha' =&gt; array('captcha' =&gt; 'Image', 'wordLen' =&gt; 6, 
          'timeout' =&gt; 300, 'width' =&gt; 300, 'height' =&gt; 100, 
          'imgUrl' =&gt; '/captcha',
          'imgDir' =&gt; APPLICATION_PATH . '/../public/captcha', 
          'font' =&gt; APPLICATION_PATH . '/../public/fonts/LiberationSansRegular.ttf')));
  </code></pre>
  
  <p>//sorry </p>