Zend Framework动作助手FlashMessenger用法详解

首頁

後端開發

php教程

Zend Framework动作助手FlashMessenger用法详解_PHP

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

May 28, 2016 am 11:48 AM

frameworkzend

本文实例讲述了Zend Framework动作助手FlashMessenger用法。分享给大家供大家参考，具体如下：

FlashMessenger 用来处理Flash Messenger会话；FlashMessenger是一个神奇的助手。

有这么一种场景，在用户注册成功后，需要在提示页面上显示用户的名称，如果不通过get传递请求，当然你也可以通过session传递

要显示的用户名称。但是seesion的操作难免复杂，可以使用Flash Messenger快速的实现这个需求。

FlashMessenger助手允许你传递用户可能需要在下个请求看到的消息。

FlashMessenger也是使用Zend_Session_Namespace来存储消息以备将来或下个请求来读取，但是相对简单一些。

FlashMessenger简单用法：

在helper_demo1项目的基础上

新增/helper_demo1/application/controllers/UserController.php

<&#63;php
class UserController extends Zend_Controller_Action
{
  protected $_flashMessenger = null;
  public function init()
  {
    $this->_flashMessenger =
    $this->_helper->getHelper('FlashMessenger');
    $this->initView();
  }
  public function registerAction()
  {
    $this->_flashMessenger->addMessage('xxxxx,Welcome!');
    $this->_helper->redirector('regtips');
  }
  public function regtipsAction()
  {
    $this->view->messages = $this->_flashMessenger->getMessages();
  }
}

新增/helper_demo1/application/views/scripts/user/regtips.phtml

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>test</title>
</head>
<body>
<&#63;php
var_dump($this->messages);
&#63;>
</body>
</html>

访问http://www.localzend.com/helper_demo1/public/user/register
跳转到http://www.localzend.com/helper_demo1/public/user/regtips

FlashMessager实现源码如下

<&#63;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_Controller
 * @subpackage Zend_Controller_Action_Helper
 * @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license  http://framework.zend.com/license/new-bsd   New BSD License
 */
/**
 * @see Zend_Session
 */
require_once 'Zend/Session.php';
/**
 * @see Zend_Controller_Action_Helper_Abstract
 */
require_once 'Zend/Controller/Action/Helper/Abstract.php';
/**
 * Flash Messenger - implement session-based messages
 *
 * @uses    Zend_Controller_Action_Helper_Abstract
 * @category  Zend
 * @package  Zend_Controller
 * @subpackage Zend_Controller_Action_Helper
 * @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: FlashMessenger.php 23775 2011-03-01 17:25:24Z ralph $
 */
class Zend_Controller_Action_Helper_FlashMessenger extends Zend_Controller_Action_Helper_Abstract implements IteratorAggregate, Countable
{
  /**
   * $_messages - Messages from previous request
   *
   * @var array
   */
  static protected $_messages = array();
  /**
   * $_session - Zend_Session storage object
   *
   * @var Zend_Session
   */
  static protected $_session = null;
  /**
   * $_messageAdded - Wether a message has been previously added
   *
   * @var boolean
   */
  static protected $_messageAdded = false;
  /**
   * $_namespace - Instance namespace, default is 'default'
   *
   * @var string
   */
  protected $_namespace = 'default';
  /**
   * __construct() - Instance constructor, needed to get iterators, etc
   *
   * @param string $namespace
   * @return void
   */
  public function __construct()
  {
    if (!self::$_session instanceof Zend_Session_Namespace) {
      self::$_session = new Zend_Session_Namespace($this->getName());
      foreach (self::$_session as $namespace => $messages) {
        self::$_messages[$namespace] = $messages;
        unset(self::$_session->{$namespace});
      }
    }
  }
  /**
   * postDispatch() - runs after action is dispatched, in this
   * case, it is resetting the namespace in case we have forwarded to a different
   * action, Flashmessage will be 'clean' (default namespace)
   *
   * @return Zend_Controller_Action_Helper_FlashMessenger Provides a fluent interface
   */
  public function postDispatch()
  {
    $this->resetNamespace();
    return $this;
  }
  /**
   * setNamespace() - change the namespace messages are added to, useful for
   * per action controller messaging between requests
   *
   * @param string $namespace
   * @return Zend_Controller_Action_Helper_FlashMessenger Provides a fluent interface
   */
  public function setNamespace($namespace = 'default')
  {
    $this->_namespace = $namespace;
    return $this;
  }
  /**
   * resetNamespace() - reset the namespace to the default
   *
   * @return Zend_Controller_Action_Helper_FlashMessenger Provides a fluent interface
   */
  public function resetNamespace()
  {
    $this->setNamespace();
    return $this;
  }
  /**
   * addMessage() - Add a message to flash message
   *
   * @param string $message
   * @return Zend_Controller_Action_Helper_FlashMessenger Provides a fluent interface
   */
  public function addMessage($message)
  {
    if (self::$_messageAdded === false) {
      self::$_session->setExpirationHops(1, null, true);
    }
    if (!is_array(self::$_session->{$this->_namespace})) {
      self::$_session->{$this->_namespace} = array();
    }
    self::$_session->{$this->_namespace}[] = $message;
    return $this;
  }
  /**
   * hasMessages() - Wether a specific namespace has messages
   *
   * @return boolean
   */
  public function hasMessages()
  {
    return isset(self::$_messages[$this->_namespace]);
  }
  /**
   * getMessages() - Get messages from a specific namespace
   *
   * @return array
   */
  public function getMessages()
  {
    if ($this->hasMessages()) {
      return self::$_messages[$this->_namespace];
    }
    return array();
  }
  /**
   * Clear all messages from the previous request & current namespace
   *
   * @return boolean True if messages were cleared, false if none existed
   */
  public function clearMessages()
  {
    if ($this->hasMessages()) {
      unset(self::$_messages[$this->_namespace]);
      return true;
    }
    return false;
  }
  /**
   * hasCurrentMessages() - check to see if messages have been added to current
   * namespace within this request
   *
   * @return boolean
   */
  public function hasCurrentMessages()
  {
    return isset(self::$_session->{$this->_namespace});
  }
  /**
   * getCurrentMessages() - get messages that have been added to the current
   * namespace within this request
   *
   * @return array
   */
  public function getCurrentMessages()
  {
    if ($this->hasCurrentMessages()) {
      return self::$_session->{$this->_namespace};
    }
    return array();
  }
  /**
   * clear messages from the current request & current namespace
   *
   * @return boolean
   */
  public function clearCurrentMessages()
  {
    if ($this->hasCurrentMessages()) {
      unset(self::$_session->{$this->_namespace});
      return true;
    }
    return false;
  }
  /**
   * getIterator() - complete the IteratorAggregate interface, for iterating
   *
   * @return ArrayObject
   */
  public function getIterator()
  {
    if ($this->hasMessages()) {
      return new ArrayObject($this->getMessages());
    }
    return new ArrayObject();
  }
  /**
   * count() - Complete the countable interface
   *
   * @return int
   */
  public function count()
  {
    if ($this->hasMessages()) {
      return count($this->getMessages());
    }
    return 0;
  }
  /**
   * Strategy pattern: proxy to addMessage()
   *
   * @param string $message
   * @return void
   */
  public function direct($message)
  {
    return $this->addMessage($message);
  }
}

更多关于zend相关内容感兴趣的读者可查看本站专题：《Zend FrameWork框架入门教程》、《php优秀开发框架总结》、《Yii框架入门及常用技巧总结》、《ThinkPHP入门教程》、《php面向对象程序设计入门教程》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

希望本文所述对大家PHP程序设计有所帮助。

陳述

本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡admin@php.cn

如何使PHP應用程序更快May 12, 2025 am 12:12 AM

tomakephpapplicationsfaster，關注台詞：1）useopcodeCachingLikeLikeLikeLikeLikePachetoStorePreciledScompiledScriptbyTecode.2）MinimimiedAtabaseSqueriSegrieSqueriSegeriSybysequeryCachingandeffeftExting.3）Leveragephp7 leveragephp7 leveragephp7 leveragephpphp7功能forbettercodeefficy.4）

PHP性能優化清單：立即提高速度May 12, 2025 am 12:07 AM

到ImprovephPapplicationspeed，關注台詞：1）啟用opcodeCachingwithapCutoredUcescriptexecutiontime.2）實現databasequerycachingingusingpdotominiminimizedatabasehits.3）usehttp/2tomultiplexrequlexrequestsandreduceconnection.4 limitesclection.4.4

PHP依賴注入：提高代碼可檢驗性May 12, 2025 am 12:03 AM

依赖注入（DI）通过显式传递依赖关系，显著提升了PHP代码的可测试性。1）DI解耦类与具体实现，使测试和维护更灵活。2）三种类型中，构造函数注入明确表达依赖，保持状态一致。3）使用DI容器管理复杂依赖，提升代码质量和开发效率。

PHP性能優化：數據庫查詢優化May 12, 2025 am 12:02 AM

DatabasequeryoptimizationinPHPinvolvesseveralstrategiestoenhanceperformance.1)Selectonlynecessarycolumnstoreducedatatransfer.2)Useindexingtospeedupdataretrieval.3)Implementquerycachingtostoreresultsoffrequentqueries.4)Utilizepreparedstatementsforeffi

簡單指南：帶有PHP腳本的電子郵件發送May 12, 2025 am 12:02 AM

phpisusedforsenderemailsduetoitsbuilt-inmail（）函數andsupportivelibrariesLikePhpMailerAndSwiftMailer.1）usethemail（）functionForbasiceMails，butithasimails.2）butithasimail.2）

PHP性能：識別和修復瓶頸May 11, 2025 am 12:13 AM

PHP性能瓶颈可以通过以下步骤解决：1)使用Xdebug或Blackfire进行性能分析，找出问题所在；2)优化数据库查询并使用缓存，如APCu；3)使用array_filter等高效函数优化数组操作；4)配置OPcache进行字节码缓存；5)优化前端，如减少HTTP请求和优化图片；6)持续监控和优化性能。通过这些方法，可以显著提升PHP应用的性能。

PHP的依賴注入：快速摘要May 11, 2025 am 12:09 AM

依賴性注射（DI）InphpisadesignPatternthatManages和ReducesClassDeptions，增強量強制性，可驗證性和MATIALWINABIOS.ItallowSpasspassingDepentenciesLikEdenciesLikedAbaseConnectionStoclasseconnectionStoclasseSasasasasareTers，interitationAseTestingEaseTestingEaseTestingEaseTestingEasingAndScalability。

提高PHP性能：緩存策略和技術May 11, 2025 am 12:08 AM

cachingimprovesphpermenceByStorcyResultSofComputationsorqucrouctationsorquctationsorquickretrieval，reducingServerLoadAndenHancingResponsetimes.feftectivestrategiesinclude：1）opcodecaching，whereStoresCompiledSinmememorytssinmemorytoskipcompliation; 2）datacaching datacachingsingMemccachingmcachingmcachings

See all articles