CodeIgniter集成smarty的方法詳解

    本文實(shí)例講述了CodeIgniter集成smarty的方法。分享給大家供大家參考，具體步驟如下：
    1.下載smarty
    解壓到ci的libraries目錄 如：
    ci/application/libraries/Smarty-2.6.20
    2.編寫(xiě)Mysmarty.php 自己的類(lèi)庫(kù)文件
    代碼如下:
    <?php if (!defined('BASEPATH')) exit('No direct script access allowed');
    require "Smarty-2.6.20/libs/Smarty.class.php";
    /**
    * @file system/application/libraries/Mysmarty.php
    */
    class Mysmarty extends Smarty
    {
      function Mysmarty()
      {
        $this->Smarty();
        $config =& get_config();
        // absolute path prevents "template not found" errors
        $this->template_dir = (!empty($config['smarty_template_dir']) ? $config['smarty_template_dir'] : BASEPATH . 'application/views/');
        $this->compile_dir = (!empty($config['smarty_compile_dir']) ? $config['smarty_compile_dir'] : BASEPATH . 'cache/'); 
        //use CI's cache folder
        if (function_exists('site_url')) {
          // URL helper required
          $this->assign("site_url", site_url()); // so we can get the full path to CI easily
        }
      }
      /**
      * @param $resource_name string
      * @param $params array holds params that will be passed to the template
      * @desc loads the template
      */
      function view($resource_name, $params = array())  {
        if (strpos($resource_name, '.') === false) {
          $resource_name .= '.html';
        }
        if (is_array($params) && count($params)) {
          foreach ($params as $key => $value) {
            $this->assign($key, $value);
          }
        }
        // check if the template file exists.
        if (!is_file($this->template_dir . $resource_name)) {
          show_error("template: [$resource_name] cannot be found.");
        }
        return parent::display($resource_name);
      }
    } // END class smarty_library
    ?>
    3.在autoload.php讓ci自動(dòng)加載smarty
    $autoload['libraries'] = array('database', 'mysmarty');
    或者 使用模板時(shí)再自己加載smarty
    $this->load->library("mysmarty");
    4.smarty變量賦值 display模板
    $this->mysmarty->assign('test', 'Hello World.');
    $this->mysmarty->view('smarty');
    注：images css 等外部資源文件 放在ci系統(tǒng)文件夾外 網(wǎng)站根目錄下
    最好用：
    $this->load->helper('url');
    base_url()來(lái)訪問(wèn)：
    base_url()."images/xxx.jpg"
    不要放到system里
    希望本文所述對(duì)大家基于CodeIgniter框架的PHP程序設(shè)計(jì)有所幫助。