如何使用Zend Framework教程之视图组件_View？

/**
  * Initialize View object
  *
  * Initializes {@link $view} if not otherwise a Zend_View_Interface.
  *
  * If {@link $view} is not otherwise set, instantiates a new Zend_View
  * object, using the 'views' subdirectory at the same level as the
  * controller directory for the current module as the base directory.
  * It uses this to set the following:
  * - script path = views/scripts/
  * - helper path = views/helpers/
  * - filter path = views/filters/
  *
  * @return Zend_View_Interface
  * @throws Zend_Controller_Exception if base view directory does not exist
  */
 public function initView()
 {
  if (!$this->getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
   return $this->view;
  }
  require_once 'Zend/View/Interface.php';
  if (isset($this->view) && ($this->view instanceof Zend_View_Interface)) {
   return $this->view;
  }
  $request = $this->getRequest();
  $module = $request->getModuleName();
  $dirs = $this->getFrontController()->getControllerDirectory();
  if (empty($module) || !isset($dirs[$module])) {
   $module = $this->getFrontController()->getDispatcher()->getDefaultModule();
  }
  $baseDir = dirname($dirs[$module]) . DIRECTORY_SEPARATOR . 'views';
  if (!file_exists($baseDir) || !is_dir($baseDir)) {
   require_once 'Zend/Controller/Exception.php';
   throw new Zend_Controller_Exception('Missing base view directory ("' . $baseDir . '")');
  }
  require_once 'Zend/View.php';
  $this->view = new Zend_View(array('basePath' => $baseDir));
  return $this->view;
 }
 /**
  * Render a view
  *
  * Renders a view. By default, views are found in the view script path as
  * <controller>/<action>.phtml. You may change the script suffix by
  * resetting {@link $viewSuffix}. You may omit the controller directory
  * prefix by specifying boolean true for $noController.
  *
  * By default, the rendered contents are appended to the response. You may
  * specify the named body content segment to set by specifying a $name.
  *
  * @see Zend_Controller_Response_Abstract::appendBody()
  * @param string|null $action Defaults to action registered in request object
  * @param string|null $name Response object named path segment to use; defaults to null
  * @param bool $noController Defaults to false; i.e. use controller name as subdir in which to search for view script
  * @return void
  */
 public function render($action = null, $name = null, $noController = false)
 {
  if (!$this->getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
   return $this->_helper->viewRenderer->render($action, $name, $noController);
  }
  $view = $this->initView();
  $script = $this->getViewScript($action, $noController);
  $this->getResponse()->appendBody(
   $view->render($script),
   $name
  );
 }
 /**
  * Render a given view script
  *
  * Similar to {@link render()}, this method renders a view script. Unlike render(),
  * however, it does not autodetermine the view script via {@link getViewScript()},
  * but instead renders the script passed to it. Use this if you know the
  * exact view script name and path you wish to use, or if using paths that do not
  * conform to the spec defined with getViewScript().
  *
  * By default, the rendered contents are appended to the response. You may
  * specify the named body content segment to set by specifying a $name.
  *
  * @param string $script
  * @param string $name
  * @return void
  */
 public function renderScript($script, $name = null)
 {
  if (!$this->getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
   return $this->_helper->viewRenderer->renderScript($script, $name);
  }
  $view = $this->initView();
  $this->getResponse()->appendBody(
   $view->render($script),
   $name
  );
 }

<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category Zend
 * @package Zend_View
 * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd  New BSD License
 * @version $Id: View.php 23775 2011-03-01 17:25:24Z ralph $
 */
/**
 * Abstract master class for extension.
 */
require_once 'Zend/View/Abstract.php';
/**
 * Concrete class for handling view scripts.
 *
 * @category Zend
 * @package Zend_View
 * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license http://framework.zend.com/license/new-bsd  New BSD License
 */
class Zend_View extends Zend_View_Abstract
{
 /**
  * Whether or not to use streams to mimic short tags
  * @var bool
  */
 private $_useViewStream = false;
 /**
  * Whether or not to use stream wrapper if short_open_tag is false
  * @var bool
  */
 private $_useStreamWrapper = false;
 /**
  * Constructor
  *
  * Register Zend_View_Stream stream wrapper if short tags are disabled.
  *
  * @param array $config
  * @return void
  */
 public function __construct($config = array())
 {
  $this->_useViewStream = (bool) ini_get('short_open_tag') ? false : true;
  if ($this->_useViewStream) {
   if (!in_array('zend.view', stream_get_wrappers())) {
    require_once 'Zend/View/Stream.php';
    stream_wrapper_register('zend.view', 'Zend_View_Stream');
   }
  }
  if (array_key_exists('useStreamWrapper', $config)) {
   $this->setUseStreamWrapper($config['useStreamWrapper']);
  }
  parent::__construct($config);
 }
 /**
  * Set flag indicating if stream wrapper should be used if short_open_tag is off
  *
  * @param bool $flag
  * @return Zend_View
  */
 public function setUseStreamWrapper($flag)
 {
  $this->_useStreamWrapper = (bool) $flag;
  return $this;
 }
 /**
  * Should the stream wrapper be used if short_open_tag is off?
  *
  * @return bool
  */
 public function useStreamWrapper()
 {
  return $this->_useStreamWrapper;
 }
 /**
  * Includes the view script in a scope with only public $this variables.
  *
  * @param string The view script to execute.
  */
 protected function _run()
 {
  if ($this->_useViewStream && $this->useStreamWrapper()) {
   include 'zend.view://' . func_get_arg(0);
  } else {
   include func_get_arg(0);
  }
 }
}

$view = new Zend_View();
$view->addScriptPath('/www/app/myviews');
$view->addScriptPath('/www/app/viewscomm');
// 如果调用 $view->render('example.php'), Zend_View 将
// 首先查找 "/www/app/myviews/example.php", 找不到再找"/www/app/viewscomm/example.php", 如果还找不到，最后查找当前目录下/的"example.php".

public function __construct($config = array())

array(
 'escape' => array(),
 'encoding' => array(),
);

/**
* Given a base path, sets the script, helper, and filter paths relative to it
*
* Assumes a directory structure of:
* <code>
* basePath/
*  scripts/
*  helpers/
*  filters/
* </code>
*
* @param string $path
* @param string $prefix Prefix to use for helper and filter paths
* @return Zend_View_Abstract
*/
public function setBasePath($path, $classPrefix = 'Zend_View')
/**
* Given a base path, add script, helper, and filter paths relative to it
*
* Assumes a directory structure of:
* <code>
* basePath/
*  scripts/
*  helpers/
*  filters/
* </code>
*
* @param string $path
* @param string $prefix Prefix to use for helper and filter paths
* @return Zend_View_Abstract
*/
public function addBasePath($path, $classPrefix = 'Zend_View')
public function addScriptPath($path)Adds to the stack of view script paths in LIFO order.
public function setScriptPath($path) Resets the stack of view script paths.
public function getScriptPath($name)Return full path to a view script specified by $name
public function getScriptPaths()Returns an array of all currently set script paths
public function addHelperPath($path, $classPrefix = 'Zend_View_Helper_')Adds to the stack of helper paths in LIFO order.
public function setHelperPath($path, $classPrefix = 'Zend_View_Helper_')Resets the stack of helper paths.
public function getHelperPath($name) Get full path to a helper class file specified by $name
public function getHelperPaths()Returns an array of all currently set helper paths
public function getHelper($name) Get a helper by name
public function getHelpers()Get array of all active helpers
public function getAllPaths() Return associative array of path types => paths
public function setEscape($spec)
/**
* Assigns variables to the view script via differing strategies.
*
* Zend_View::assign('name', $value) assigns a variable called 'name'
* with the corresponding $value.
*
* Zend_View::assign($array) assigns the array keys as variable
* names (with the corresponding array values).
*
* @see __set()
* @param string|array The assignment strategy to use.
* @param mixed (Optional) If assigning a named variable, use this
* as the value.
* @return Zend_View_Abstract Fluent interface
* @throws Zend_View_Exception if $spec is neither a string nor an array,
* or if an attempt to set a private or protected member is detected
*/
public function assign($spec, $value = null)

$this->view->assign('roles', $roles);
$this->view->assign('num', $num);
$this->view->assign('a', $a);

$this->view->roles=$roles;
$this->view->a=$a;
public function render($name) Processes a view script and returns the output.
public function escape($var):Escapes a value for output in a view script.
public function setEncoding($encoding) Set encoding to use with htmlentities() and htmlspecialchars()
public function getEncoding() :Return current escape encoding

$this->roles

$this->baseUrl();
$this->url();
$this->paginationControl();
$this->partial()

/**
 * Initialize the common view helper
 */
protected function _initViewHelper()
{
 $boot=$this->bootstrap('View');
 $view = $boot->getResource('View');
    $view->setHelperPath('Sql/View/Helper', 'Sql_View_Helper');
}

/**
 *
 * @return void
 */
public function listAction()
{
 $this->view->assign('data', $data);
}

<?php foreach ($this->data as $item) : ?>
<tr style="height: 19px;">
  <td class="datagrid-cell"><?php echo($item->item1);?></td>
</tr>
<?php endforeach; ?>