Zend Framework实现Zend_View集成Smarty模板系统的方法

本文实例讲述了zend framework实现zend_view集成smarty模板系统的方法。分享给大家供大家参考，具体如下：

zend_view抽象出了zend_view_interface，可以让我们集成不同的视图解决方案，例如可以集成smarty。要在zend中使用其他视图系统作为视图，只要实现zend_view_interface接口即可。

zend_view_interface的接口定义:

<?php
/**
 * interface class for zend_view compatible template engine implementations
 *
 * @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
 */
interface zend_view_interface
{
  /**
   * return the template engine object, if any
   *
   * if using a third-party template engine, such as smarty, pattemplate,
   * phplib, etc, return the template engine object. useful for calling
   * methods on these objects, such as for setting filters, modifiers, etc.
   *
   * @return mixed
   */
  public function getengine();
  /**
   * set the path to find the view script used by render()
   *
   * @param string|array the directory (-ies) to set as the path. note that
   * the concrete view implentation may not necessarily support multiple
   * directories.
   * @return void
   */
  public function setscriptpath($path);
  /**
   * retrieve all view script paths
   *
   * @return array
   */
  public function getscriptpaths();
  /**
   * set a base path to all view resources
   *
   * @param string $path
   * @param string $classprefix
   * @return void
   */
  public function setbasepath($path, $classprefix = 'zend_view');
  /**
   * add an additional path to view resources
   *
   * @param string $path
   * @param string $classprefix
   * @return void
   */
  public function addbasepath($path, $classprefix = 'zend_view');
  /**
   * assign a variable to the view
   *
   * @param string $key the variable name.
   * @param mixed $val the variable value.
   * @return void
   */
  public function __set($key, $val);
  /**
   * allows testing with empty() and isset() to work
   *
   * @param string $key
   * @return boolean
   */
  public function __isset($key);
  /**
   * allows unset() on object properties to work
   *
   * @param string $key
   * @return void
   */
  public function __unset($key);
  /**
   * assign variables to the view script via differing strategies.
   *
   * suggested implementation is to allow setting a specific key to the
   * specified value, or passing an array of key => value pairs to set en
   * masse.
   *
   * @see __set()
   * @param string|array $spec the assignment strategy to use (key or array of key
   * => value pairs)
   * @param mixed $value (optional) if assigning a named variable, use this
   * as the value.
   * @return void
   */
  public function assign($spec, $value = null);
  /**
   * clear all assigned variables
   *
   * clears all variables assigned to zend_view either via {@link assign()} or
   * property overloading ({@link __get()}/{@link __set()}).
   *
   * @return void
   */
  public function clearvars();
  /**
   * processes a view script and returns the output.
   *
   * @param string $name the script name to process.
   * @return string the script output.
   */
  public function render($name);
}

集成smarty的基本实现如下：

smarty下载地址

http://www.smarty.net/files/smarty-3.1.7.tar.gz

目录结构

root@coder-671t-m:/www/zf_demo1# tree
.
├── application
│   ├── bootstrap.php
│   ├── configs
│   │   └── application.ini
│   ├── controllers
│   │   ├── errorcontroller.php
│   │   └── indexcontroller.php
│   ├── models
│   └── views
│       ├── helpers
│       └── scripts
│           ├── error
│           │   └── error.phtml
│           └── index
│               ├── index.phtml
│               └── index.tpl
├── docs
│   └── readme.txt
├── library
│   ├── lq
│   │   └── view
│   │       └── smarty.php
│   └── smartylib
│       ├── debug.tpl
│       ├── plugins
│       │   ├── ...........................
│       │   └── variablefilter.htmlspecialchars.php
│       ├── smartybc.class.php
│       ├── smarty.class.php
│       └── sysplugins
│           ├── ..........................
│           └── smarty_security.php
├── public
│   └── index.php
├── temp
│   └── smarty
│       └── templates_c
│           └── 73d91bef3fca4e40520a7751bfdfb3e44b05bdbd.file.index.tpl.php
└── tests
    ├── application
    │   └── controllers
    │       └── indexcontrollertest.php
    ├── bootstrap.php
    ├── library
    └── phpunit.xml

24 directories, 134 files

/zf_demo1/library/lq/view/smarty.php

<?php
require_once 'smartylib/smarty.class.php';
class lq_view_smarty implements zend_view_interface {
  /**
   * smarty object
   *
   * @var smarty
   */
  protected $_smarty;
  /**
   * constructor
   *
   * @param $tmplpath string
   * @param $extraparams array
   * @return void
   */
  public function __construct($tmplpath = null, $extraparams = array()) {
    $this->_smarty = new smarty ();
    if (null !== $tmplpath) {
      $this->setscriptpath ( $tmplpath );
    }
    foreach ( $extraparams as $key => $value ) {
      $this->_smarty->$key = $value;
    }
  }
  /**
   * return the template engine object
   *
   * @return smarty
   */
  public function getengine() {
    return $this->_smarty;
  }
  /**
   * set the path to the templates
   *
   * @param $path string
   *      the directory to set as the path.
   * @return void
   */
  public function setscriptpath($path) {
    if (is_readable ( $path )) {
      $this->_smarty->template_dir = $path;
      return;
    }
    throw new exception ( 'invalid path provided' );
  }
  /**
   * retrieve the current template directory
   *
   * @return string
   */
  public function getscriptpaths() {
    return array ($this->_smarty->template_dir );
  }
  /**
   * alias for setscriptpath
   *
   * @param $path string
   * @param $prefix string
   *      unused
   * @return void
   */
  public function setbasepath($path, $prefix = 'zend_view') {
    return $this->setscriptpath ( $path );
  }
  /**
   * alias for setscriptpath
   *
   * @param $path string
   * @param $prefix string
   *      unused
   * @return void
   */
  public function addbasepath($path, $prefix = 'zend_view') {
    return $this->setscriptpath ( $path );
  }
  /**
   * assign a variable to the template
   *
   * @param $key string
   *      the variable name.
   * @param $val mixed
   *      the variable value.
   * @return void
   */
  public function __set($key, $val) {
    $this->_smarty->assign ( $key, $val );
  }
  /**
   * retrieve an assigned variable
   *
   * @param $key string
   *      the variable name.
   * @return mixed the variable value.
   */
  public function __get($key) {
    return $this->_smarty->get_template_vars ( $key );
  }
  /**
   * allows testing with empty() and isset() to work
   *
   * @param $key string
   * @return boolean
   */
  public function __isset($key) {
    return (null !== $this->_smarty->get_template_vars ( $key ));
  }
  /**
   * allows unset() on object properties to work
   *
   * @param $key string
   * @return void
   */
  public function __unset($key) {
    $this->_smarty->clear_assign ( $key );
  }
  /**
   * assign variables to the template
   *
   * allows setting a specific key to the specified value, or passing an array
   * of key => value pairs to set en masse.
   *
   * @see __set()
   * @param $spec string|array
   *      the assignment strategy to use (key or array of key
   *      => value pairs)
   * @param $value mixed
   *      (optional) if assigning a named variable, use this
   *      as the value.
   * @return void
   */
  public function assign($spec, $value = null) {
    if (is_array ( $spec )) {
      $this->_smarty->assign ( $spec );
      return;
    }
    $this->_smarty->assign ( $spec, $value );
  }
  /**
   * clear all assigned variables
   *
   * clears all variables assigned to zend_view either via {@link assign()} or
   * property overloading ({@link __get()}/{@link __set()}).
   *
   * @return void
   */
  public function clearvars() {
    $this->_smarty->clear_all_assign ();
  }
  /**
   * processes a template and returns the output.
   *
   * @param $name string
   *      the template to process.
   * @return string the output.
   */
  public function render($name) {
    ob_start();
    echo $this->_smarty->fetch ( $name );
    unset($name);
  }
}

/zf_demo1/application/configs/application.ini

[production]
includepaths.library = application_path "/../library"
bootstrap.path = application_path "/bootstrap.php"
bootstrap.class = "bootstrap"
appnamespace = "application"
autoloadernamespaces.lq = "lq_"
pluginpaths.lq_view_smarty = "lq/view/smarty"
resources.frontcontroller.controllerdirectory = application_path "/controllers"
resources.frontcontroller.params.displayexceptions = 1
phpsettings.display_startup_errors = 1
phpsettings.display_errors = 1

/zf_demo1/application/bootstrap.php

<?php
class bootstrap extends zend_application_bootstrap_bootstrap {
  /**
   * initialize smarty view
   */
  protected function _initsmarty() {
    $smarty = new lq_view_smarty ();
    $smarty->setscriptpath('/www/zf_demo1/application/views/scripts');
    return $smarty;
  }
}

/zf_demo1/application/controllers/indexcontroller.php

<?php
class indexcontroller extends zend_controller_action {
  public function init() {
    /*
     * initialize action controller here
     */
  }
  public function indexaction() {
    $this->_helper->gethelper('viewrenderer')->setnorender();
    $this->view = $this->getinvokearg ( 'bootstrap' )->getresource ( 'smarty' );
    $this->view->book = 'hello world! ';
    $this->view->author = 'by smarty';
    $this->view->render('index/index.tpl');
  }
}

/zf_demo1/application/views/scripts/index/index.tpl

<!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>insert title here</title>
</head>
<body>
{$book}
{$author}
</body>
</html>

如果需要配置smarty可以打开/zf_demo1/library/smartylib/smarty.class.php文件进行相应配置例如

/**
* initialize new smarty object
*
*/
public function __construct()
{
    // selfpointer needed by some other class methods
    $this->smarty = $this;
    if (is_callable('mb_internal_encoding')) {
      mb_internal_encoding(smarty::$_charset);
    }
    $this->start_time = microtime(true);
    // set default dirs
    $this->settemplatedir('/www/zf_demo1/temp/smarty' . ds . 'templates' . ds)
      ->setcompiledir('/www/zf_demo1/temp/smarty' . ds . 'templates_c' . ds)
      ->setpluginsdir(smarty_plugins_dir)
      ->setcachedir('/www/zf_demo1/temp/smarty' . ds . 'cache' . ds)
      ->setconfigdir('/www/zf_demo1/temp/smarty' . ds . 'configs' . ds);
    $this->debug_tpl = 'file:' . dirname(__file__) . '/debug.tpl';
    if (isset($_server['script_name'])) {
      $this->assignglobal('script_name', $_server['script_name']);
    }
}

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。