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<?php
/**
 * Helper to generate hidden elements from query
 *
 * @category   Zend * @package    Zend_View
 * @subpackage Helper
 * @copyright  Copyright (c) 2011 Netzelf GbR (http://www.netzelf.de)
 * @license    http://framework.zend.com/license/new-bsd New BSD License
 */class Zend_View_Helper_FormHiddenQuery extends Zend_View_Helper_Abstract
{
    /**
     * Build hidden input fields from the current query params ($_GET)
     *      * @param string|array $excludes Array or commaseparated list of top level keys to exclude
     * @return string
     */
    public function formHiddenQuery($excludes = array())
    {        $request = Zend_Controller_Front::getInstance()->getRequest();
        if (!$request instanceof Zend_Controller_Request_Http) {
            $e = new Zend_View_Exception('Request must be instance of Zend_Controller_Request_Http!');
            $e->getView($this->view);
            throw $e;        }
        
        if (!is_array($excludes)) {
            $excludes = explode(',', (string) $excludes);
        }        
        $get = $request->getQuery();
        $get = array_diff_key($get, array_flip($excludes));
        
        $raw = urldecode(http_build_query($get));        $search = '/[&]?([^&]*)\=([^&]*)/';
        $replace = '<input type="hidden" name="$1" value="$2" />'."\n";
        
        $hidden = preg_replace($search, $replace, $raw);
                return $hidden;
    }
}
?>
 <!-- Used like this: -->
<form action="" method="get">
    <?php echo $this->formHiddenQuery('q'); ?>
        <input type="text" name="q" />
        <input type="submit" value="Search"/></form>
 
<!-- 
With this request: http://example.com/?someArray[foo]=bar&foo=bar&q=hello 
output will be this:-->
<form action="" method="get">
        <input type="hidden" name="someArray[foo]" value="bar" />
        <input type="hidden" name="foo" value="bar" />
        <input type="text" name="q" />        <input type="submit" value="Search"/>
</form>