Zend FR

<?php
include_once 'Smarty/Smarty.class.php';

class Zend_View_Smarty extends Smarty implements Zend_View_Interface {

   

    /**
     * Constructor
     *
     * @param string $tmplPath
     * @param array $extraParams
     * @return void
     */
    public function __construct($tmplPath = null, $extraParams = array()) {
   
        if (null !== $tmplPath) {
            $this->setScriptPath($tmplPath);
        }

        foreach ($extraParams as $key => $value) {
            $this->$key = $value;
        }
  
    }

    /**
     * Return the template engine object
     *
     * @return Zend_View_Smarty
     */
    public function getEngine() {
        
        return $this;
    }

    /**
     * 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->template_dir = $path;
            return;
        }

        throw new Exception('Invalid path provided');
    }

    /**
     * Retrieve the current template directory
     *
     * @return string
     */
    public function getScriptPaths() {
        return array($this->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, $val) {
        parent::assign($key, $val);
    }

    /**
     * Allows testing with empty() and isset() to work
     *
     * @param string $key
     * @return boolean
     */
    public function __isset($key) {
        return (null !== parent::get_template_vars($key));
    }

    /**
     * Allows unset() on object properties to work
     *
     * @param string $key
     * @return void
     */
    public function __unset($key) {
        parent::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($spec)) {
            parent::assign($spec);
            return;
        }

        parent::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() {
        parent::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) {
        // Assign layout to view
        $layout =  Zend_Layout::getMvcInstance();
        parent::assign('layout', $layout);

        return parent::fetch($name);
    }


}

class Zend_View_Smarty extends Smarty implements Zend_View_Interface {
  .......

 /**
     * Method to call zend view helpers
     * @param <type> $method
     * @param <type> $arguments
     * @return <type> retur
     */
    public function __call($method, $arguments){
       
        if(isset($this->_tpl_vars[$method] ) ){
          
            $object = $this->_tpl_vars[$method];
            $class = new ReflectionObject($object);
            $methode = $class->getMethod($method);
            $result = $methode->invokeArgs($object,$arguments);
            return $this->_tpl_vars[$method];

        }else{
           
           $classname = "Zend_View_Helper_".ucfirst($method);
          
           if(class_exists  ( $classname)){
               
                $object = new $classname();
                $class = new ReflectionObject($object);
                $methode = $class->getMethod($method);
                $result = $methode->invokeArgs($object,$arguments);

                $this->_tpl_vars[$method] = $object;
                return $this->_tpl_vars[$method];
           }else{
               throw new Zend_View_Exception("$classname Dont't exist in current application");
           }

            
        }
        
    }
   ....
}

class Bootstrap extends Zend_Application_Bootstrap_Bootstrap{
  ....

  protected function _initViewHelpers()
    {

        $layout =  Zend_Layout::getMvcInstance();
        $view = $layout->getView();
        $view->doctype('XHTML1_STRICT');
        $view->headMeta()->appendHttpEquiv('Content-Type', 'text/html;charset=utf-8');
        $view->headTitle(' Tutoriel Zend Framework');
        
      
        
    }

....
}

{$doctype}
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
       
        {$headMeta}
        {$headTitle}
    </head>

    <body>
        
        <h1>Layout</h1>

        <p>
          
         {$layout->content}
         
        </p>

    </body>
</html>