Zend Framework动作助手FlashMessenger用法详解

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简单用法

：

在helper_demo1项目的基础上

新增/helper_demo1/application/controllers/UserController.PHP

rush:PHP;"> _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

rush:PHP;"> <Meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> messages); ?>

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

rush:PHP;"> 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：《》、《》、《》、《》、《》、《》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。