Zend Framework Smarty extension implementation method, zendsmarty_PHP tutorial

Zend Framework Smarty extension implementation method, zendsmarty

The example in this article describes the Zend Framework Smarty extension implementation method. Share it with everyone for your reference, the details are as follows:

Today I will summarize the method of extending Smarty templates in the ZF framework. It has been introduced in more detail in the ZF help document, so I will say a little more here.

1. Place smarty’s core file package in the lib folder. The file package must include (internals/, plugins/, Config_File.class.php, Smarty.class.php, Smarty_Compiler.class.php, debug. tpl).

2. Add the file: Smarty.php under Zend/View. The content of the file is as follows:

<&#63;php
/**
* Zend_View_Interface
*/
require_once 'Zend/View/Interface.php';
/**
* Smarty 
*/
require_once("smarty/Smarty.class.php");
/**
* 创建Smarty视图
*/
class Zend_View_Smarty implements Zend_View_Interface
{
  /**
   * Smarty object
   * @var Smarty
   */
  protected $_smarty;
  /**
   * Constructor
   *
   * @param string $tmplPath
   * @param array $extraParams
   * @return void
   */
  public function __construct($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 string $path The directory to set as the path.
   * @return void
   */
  public function setScriptPath($path)
  {
    if (is_readable($path)) {
      $this->_smarty->template_dir = $path;
      return;
    }
    throw new Exception('Invalid path provided');
  }
  /**
  * set smarty缓存
  * @author lengfeng
  */
  public function setCompilePath($path){
    if (is_readable($path)) {
      $this->_smarty->compile_dir = $path;
      return;
    }
    throw new Exception('Invalid path provided');    
  }
  /**
  * set smarty 编译后文档
  * @author lengfeng
  */
  public function setCachePath($path){
    if (is_readable($path)) {
      $this->_smarty->cache_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 string $path
   * @param string $prefix Unused
   * @return void
   */
  public function setBasePath($path, $prefix = 'Zend_View')
  {
    return $this->setScriptPath($path);
  }
  /**
   * Alias for setScriptPath
   *
   * @param string $path
   * @param string $prefix Unused
   * @return void
   */
  public function addBasePath($path, $prefix = 'Zend_View')
  {
    return $this->setScriptPath($path);
  }
  /**
   * Assign a variable to the template
   *
   * @param string $key The variable name.
   * @param mixed $val The variable value.
   * @return void
   */
  public function __set($key, $val)
  {
    $this->_smarty->assign($key, $val);
  }
  /**
   * Retrieve an assigned variable
   *
   * @param string $key The variable name.
   * @return mixed The variable value.
   */
  public function __get($key)
  {
    return $this->_smarty->get_template_vars($key);
  }
  /**
   * Allows testing with empty() and isset() to work
   *
   * @param string $key
   * @return boolean
   */
  public function __isset($key)
  {
     return (null !== $this->_smarty->get_template_vars($key));
  }
  /**
   * Allows unset() on object properties to work
   *
   * @param string $key
   * @return void
   */
  public function __unset($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 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, $value = null)
  {
    if (is_array($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 string $name The template to process.
   * @return string The output.
   */
  public function render($name)
  {
    return $this->_smarty->fetch($name);
  }
  /**
   * 设置是否生成缓存
   * 如果没有参数,默认为true
   */
  public function setCache($bool){
     if (isset($bool)) {
      $this->_smarty->caching = $bool;
      return;
    }
  }
}

3. Create cache and compile folders under the app folder

4. Add

to the config.ini configuration file

dir.compile    = ../app/compile
dir.cache    = ../app/cache

For steps three and four, please refer to the previous tutorial on building a website with the zendfreamwork framework

5. Add
to the application.php file

/**
* 初始化smarty视图
*
*/
private function _initSmartyView()
{
    $view = new Zend_View_Smarty();
    $view->setBasePath($this->_pathConfig->dir->viewBase);
    $view->setScriptPath($this->_pathConfig->dir->viewBase."/scripts");
    $view->setCompilePath($this->_pathConfig->dir->compile);
    $view->setCachePath($this->_pathConfig->dir->cache);
    $smarty=$view->getEngine();
    $smarty->caching=false;
    $smarty->debugging = true;
    $smarty->compile_check = true;    
    $smarty->left_delimiter = "<{"; //定义标示符
    $smarty->right_delimiter = "}>";
    $registry = Zend_Registry::getInstance();
    $registry->set('smartyview',$smarty); //smarty对象
    $registry->set('sview',$view);          
}

and add

in function init()

$this->_initSmartyView();

6. Call in Controller

Because the object has been registered, it can be called as follows:

$view = Zend_Registry::getInstance()->get("smartyview");
//注意这是smarty对象，使用smarty的那些语法，比如 $view->assign("user","root");
$view = Zend_Registry::getInstance()->get("sview"); 
//这是zf的view对象，按zf中的那些方法用，不用改变。
//按这样，你如果要将以前写的代码改为用smaty，后台不用变了，只需要将视图文件改变就行了

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I hope this article will be helpful to everyone’s PHP programming based on the Zend Framework framework.

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