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Twig的安装与使用
1.下载Twig源码 https://github.com/twigphp/Twig/tags2.复制lib文件夹...
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11
2019/04

Twig的安装与使用

1.下载Twig源码 https://github.com/twigphp/Twig/tags

2.复制lib文件夹下核心目录到CI框架的 common 目录

3.在CI框架创建扩展文件,路径: ./application/libraries/Twig.php 扩展代码:

 <?php·  /**·   * Created by PhpStorm.·   * User: Swain·   * Date: 2016/6/8 ·   */·  require BASEPATH."common/Twig/Autoloader.php";·  class twig·  {·      public $twig;·   ·      public $config;·   ·      private $data = array();·   ·      /**·       * 读取配置文件twig.php并初始化设置·       *·       */·      public function __construct($config)·      {·          $config_default = array(·              'cache_dir' => false, //开启缓存·              'debug' => false, //开启调试模式(dump函数可用)·              'auto_reload' => true,·              'extension' => '.tpl', //默认后缀名·          );·          $this->config = array_merge($config_default, $config);·          Twig_Autoloader::register ();·          $loader = new Twig_Loader_Filesystem ($this->config['template_dir']);·          $this->twig = new Twig_Environment ($loader, array (·              'cache' => $this->config['cache_dir'],·              'debug' => $this->config['debug'],·              'auto_reload' => $this->config['auto_reload'],·          ) );·          $CI = & get_instance ();·          $CI->load->helper(array('url'));·          $this->twig->addFunction(new Twig_SimpleFunction('site_url', 'site_url'));·          $this->twig->addFunction(new Twig_SimpleFunction('base_url', 'base_url'));·      }·   ·      /**·       * 给变量赋值·       *·       * @param string|array $var·       * @param string $value·       */·      public function assign($var, $value = NULL)·      {·          if(is_array($var)) {·              foreach($var as $key => $val) {·                  $this->data[$key] = $val;·              }·          } else {·              $this->data[$var] = $value;·          }·      }·   ·      /**·       * 模版渲染·       *·       * @param string $template 模板名·       * @param array $data 变量数组·       * @param string $return true返回 false直接输出页面·       * @return string·       */·      public function render($template, $data = array(), $return = FALSE)·      {·          $template = $this->twig->loadTemplate ( $this->getTemplateName($template) );·          $data = array_merge($this->data, $data);·          if ($return === TRUE) {·              return $template->render ( $data );·          } else {·              return $template->display ( $data );·          }·      }·   ·      /**·       * 获取模版名·       *·       * @param string $template·       */·      public function getTemplateName($template)·      {·          $default_ext_len = strlen($this->config['extension']);·          if(substr($template, -$default_ext_len) != $this->config['extension']) {·              $template .= $this->config['extension'];·          }·          return $template;·      }·   ·      /**·       * 字符串渲染·       *·       * @param string $string 需要渲染的字符串·       * @param array $data 变量数组·       * @param string $return true返回 false直接输出页面·       * @return string·       */·      public function parse($string, $data = array(), $return = FALSE)·      {·          $string = $this->twig->loadTemplate ( $string );·          $data = array_merge($this->data, $data);·          if ($return === TRUE) {·              return $string->render ( $data );·          } else {·              return $string->display ( $data );·          }·      }·  }

  

4.在CI框架创建配制文件,路径: ./application/config/twig.php 配制代码:

    <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');// 默认扩展名$config['extension'] = ".twig";// 默认模版路径$config['template_dir'] = APPPATH . "views/";// 缓存目录$config['cache_dir'] = APPPATH . "cache/twig/";// 是否开启调试模式$config['debug'] = false;// 自动刷新$config['auto_reload'] = true;

5.设置自动加载 ./application/config/autoload.php 把扩展及配制自动加载

$autoload\['libraries'\] = array('Twig');

$autoload\['config'\]   = array('twig');

Twig模板的使用

1.设置模板引擎自动加载后。控制器中加入下面语句调用模板

$loader = **new** Twig\_Loader\_Filesystem('application/path');//模板路径

$twig = **new** Twig_Environment($loader, **array**(

'cache' =\> '/path/compilation_cache',  //设置缓存,建议调试阶段关闭(缓存太//强大删不掉的那种)

));

$template = $twig->loadTemplate('test.twig');  //载入模板名称

$template->display($data);//变量数据传入模板展示

开发文档:http://twig.sensiolabs.org/documentation

Last modification:April 11th, 2019 at 11:45 pm
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