get <textarea> value using PHP Simple HTML DOM Parser

<textarea rows="1" cols="80" name="textarea{7}1" class="textarea_getcode">http://example.com/upload/logo.png</textarea>

Please tel开发者_开发知识库l me how to grab http://example.com/upload/logo.png

Thanks ..

$textarea = $html->find('textarea[class=textarea_getcode]'); 

$textarea->innertext;

something like that?