[PHP知识库]yaf框架整合smarty

yaf的版本为3.3.2

百度出来的教程可能因为版本原因，均会报错：

Fatal error: Declaration of Smarty_Adapter::getScriptPath() must be compatible with Yaf_View_Interface::getScriptPath($request = NULL)。

主要原因是方法getScriptPath有些调整，

对代码进行修改，不报错了，具体代码如下：

<?php
Yaf_Loader::import( APPLICATION_PATH ."/application/library/Smarty/Smarty.class.php");
Yaf_Loader::import( APPLICATION_PATH . "/application/library/Smarty/sysplugins/smarty_internal_templatecompilerbase.php");
Yaf_Loader::import( APPLICATION_PATH . "/application/library/Smarty/sysplugins/smarty_internal_templatelexer.php");
Yaf_Loader::import( APPLICATION_PATH . "/application/library/Smarty/sysplugins/smarty_internal_templateparser.php");
Yaf_Loader::import( APPLICATION_PATH . "/application/library/Smarty/sysplugins/smarty_internal_compilebase.php");
Yaf_Loader::import( APPLICATION_PATH . "/application/library/Smarty/sysplugins/smarty_internal_write_file.php");

class Smarty_Adapter implements Yaf_View_Interface
{
    /**
     * Smarty object
     * @var Smarty
     */
    public $_smarty;
    
    /**
     * Constructor
     *
     * @param string $tmplPath
     * @param array $extraParams
     * @return void
     */
    public function __construct($tmplPath = null, $extraParams = array()) {
        
        Yaf_Loader::import(APPLICATION_PATH . '/application/library/Smarty/bootstrap.php');
        $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');
    }
    
    /**
     * Retrieve the current template directory
     *
     * @return string
     */
    public function getScriptPath($request = null)
    {
        return $this->_smarty->template_dir ?? null;
    }
    
    
    /**
     * 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);
    }
    
    /**
     * 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, $value = NULL) {
        return $this->_smarty->fetch($name);
    }
    
    public function display($name, $value = NULL) {
        echo $this->_smarty->fetch($name);
    }
    
}