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