刚刚看了几个推荐框架的帖子，蛮多推荐codeigniter的，请恕我直言，那框架实在不敢恭维啊~个人意见，仅供参考。-php教程-PHP中文网

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刚刚看了几个推荐框架的帖子，蛮多推荐codeigniter的，请恕我直言，那框架实在不敢恭维啊~个人意见，仅供参考。

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Jun 23, 2016 pm 01:32 PM

首先我是用过codeigniter的，刚开始学框架的时候用过一阵子，然后后来公司用thinkphp，就没再用了，用了2个之后，就会有一些对比性。首先这2个框架文件夹容量都比较大，称不上轻量级之类的，我都不怎么看好。
今天单说codeigniter框架
举个官网控制器调用模板的例子

<?phpclass Blog extends CI_Controller { function index() {  $data['title'] = "My Real Title";  $data['heading'] = "My Real Heading";    $this->load->view('blogview', $data); }}?>

<html><head><title><?php echo $title;?></title></head><body> <h1><?php echo $heading;?></h1></body></html>

感觉这种模式很不好，难道这就是传说中的控制器模板分离？这种模式只能忽悠刚刚入门的那些PHPer，先不论调用smarty之类的来反驳我，只是说他的自身特性，而且什么框架都能结合smarty来用。

以上的代码用PHP的一个函数就能实现了，请查阅extract函数的用法。

很多用codeigniter的PHPer估计就是冲着所谓写法优美去的，可以用连贯写法-> ->

究其实质，并没有对模板（视图）产生有多大的作用，

只是把变量全部先计算出来，换个名称，再在需要的时候，把新名称填入到所需地方。

然后个人在国外网站闲逛的时候呢，发现一个模板，它和codeigniter的这种模式有很大的相似性。模板名未知，就叫他template吧。你们可以看看，就可以对codeigniter原理有大致的了解吧

它的核心模板代码我写一下

<?php//template.php/** * Copyright (c) 2003 Brian E. Lozier (brian@massassi.net) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */class Template {	var $vars; /// Holds all the template variables	var $path; /// Path to the templates	/**	 * Constructor	 *	 * @param string $path the path to the templates	 *	 * @return void	 */	function Template($path = null) {		$this->path = $path;	}	/**	 * Set the path to the template files.	 *	 * @param string $path path to template files	 *	 * @return void	 */	function set_path($path) {		$this->path = $path;	}	/**	 * Set a template variable.	 *	 * @param string $name name of the variable to set	 * @param mixed $value the value of the variable	 *	 * @return void	 */	function set($name, $value) {		$this->vars[$name] = $value;	}	/**	 * Open, parse, and return the template file.	 *	 * @param string string the template file name	 *	 * @return string	 */	function fetch($file) {		extract($this->vars);          // Extract the vars to local namespace		ob_start();                    // Start output buffering		include($this->path . $file);  // Include the file		$contents = ob_get_contents(); // Get the contents of the buffer		ob_end_clean();                // End buffering and discard		return $contents;              // Return the contents	}}/** * An extension to Template that provides automatic caching of * template contents. */class CachedTemplate extends Template {	var $cache_id;	var $expire;	var $cached;	/**	 * Constructor.	 *	 * @param string $path path to template files	 * @param string $cache_id unique cache identifier	 * @param int $expire number of seconds the cache will live	 *	 * @return void	 */	function CachedTemplate($path, $cache_id = null, $expire = 900) {		$this->Template($path);		$this->cache_id = $cache_id ? 'cache/' . md5($cache_id) : $cache_id;		$this->expire   = $expire;	}	/**	 * Test to see whether the currently loaded cache_id has a valid	 * corrosponding cache file.	 *	 * @return bool	 */	function is_cached() {		if($this->cached) return true;		// Passed a cache_id?		if(!$this->cache_id) return false;		// Cache file exists?		if(!file_exists($this->cache_id)) return false;		// Can get the time of the file?		if(!($mtime = filemtime($this->cache_id))) return false;		// Cache expired?		if(($mtime + $this->expire) < time()) {			@unlink($this->cache_id);			return false;		}		else {			/**			 * Cache the results of this is_cached() call.  Why?  So			 * we don't have to double the overhead for each template.			 * If we didn't cache, it would be hitting the file system			 * twice as much (file_exists() & filemtime() [twice each]).			 */			$this->cached = true;			return true;		}	}	/**	 * This function returns a cached copy of a template (if it exists),	 * otherwise, it parses it as normal and caches the content.	 *	 * @param $file string the template file	 *	 * @return string	 */	function fetch_cache($file) {		if($this->is_cached()) {			$fp = @fopen($this->cache_id, 'r');			$contents = fread($fp, filesize($this->cache_id));			fclose($fp);			return $contents;		}		else {			$contents = $this->fetch($file);			// Write the cache			if($fp = @fopen($this->cache_id, 'w')) {				fwrite($fp, $contents);				fclose($fp);			}			else {				die('Unable to write cache.');			}			return $contents;		}	}}?>

在该核心模板类中，同样用的是extract($this->vars); 函数来拆数组。

我们看他的“控制器”用法

<?php//user_list.phprequire_once('template.php');/** * This variable holds the file system path to all our template files. */$path = './templates/';/** * Create a template object for the outer template and set its variables. */$tpl = & new Template($path);$tpl->set('title', 'User List');/** * Create a template object for the inner template and set its variables.  The * fetch_user_list() function simply returns an array of users. */$body = & new Template($path);$body->set('user_list', fetch_user_list());/** * Set the fetched template of the inner template to the 'body' variable in * the outer template. */$tpl->set('body', $body->fetch('user_list.tpl.php')); //这个是直接调用模板/** * Echo the results. */echo $tpl->fetch('index.tpl.php');/** * Just a function to simulate the retrieval of a user list. */function fetch_user_list() {	return array(		array('id' => 1,		      'name' => 'bob',			  'email' => 'bob@mozilla.org',			  'banned' => false),		array('id' => 2,		      'name' => 'judy',			  'email' => 'judy@php.net',			  'banned' => false),		array('id' => 3,		      'name' => 'joe',			  'email' => 'joe@opera.com',			  'banned' => false),		array('id' => 4,			  'name' => 'billy',			  'email' => 'billy@wakeside.com',			  'banned' => true),		array('id' => 5,		      'name' => 'eileen',			  'email' => 'eileen@slashdot.org',			  'banned' => false));}?>

set就是赋值了。然后看它的“视图”是怎么输出的，就基本上完全和codeigniter类似了

//index.tpl.php<html>	<head>		<title><?=$title;?></title>	</head>	<body>		<h2><?=$title;?></h2><?=$body;?>	</body></html>

//user_list.tpl.php<table>	<tr>		<th>Id</th>		<th>Name</th>		<th>Email</th>		<th>Banned</th>	</tr><? foreach($user_list as $user): ?>	<tr>		<td align="center"><?=$user['id'];?></td>		<td><?=$user['name'];?></td>		<td><a href="mailto:<?=$user['email'];?>"><?=$user['email'];?></a></td>		<td align="center"><?=($user['banned'] ? 'X' : ' ');?></td>	</tr><? endforeach; ?></table>

详细的下载地址： http://download.csdn.net/detail/xjl756425616/3984218

回复讨论(解决方案)

LZ推荐几个框架呗！~

php amp
你怎么看

技术跟日期有什么关系？只是觉得和codeigniter的方式很类似~

LZ推荐几个框架呗！~

没什么推荐呀~我就用过那2个，缺乏全面的对比性。

//template.php
/**
* Copyright (c) 2003 Brian E. Lozier (brian@massassi.net)

回复一下

codeigniter 不是模板引擎
既然是框架，当然他也有自己的模板引擎

10年前的东西，过于陈旧了
你不也想着标新立异吗？

4.1 愚人节

php amp
你怎么看

我下载下来先看看

你这个template与ci的有什么不同？
模板说到底，还不是ob＋extract？

php amp
你怎么看

看了，没啥好评论的，和那个模板引擎类似

推荐ci，是ci容易上手，模板，不都是差不多么，

其实框架没有对错,看需求.比如我现在公司项目紧急,来的都是新人,能力参差不齐.CI框架就很适合,有框架使用经验的,用这玩意1,2天基本就能上手开发.
不过,局限性也很明显 ...

我个人认为CI还是蛮好的，mvc分工明细，代码简单清晰明了

CI还可以吧，我一直在用也没发现有什么问题。

php amp
你怎么看

看了，没啥好评论的，和那个模板引擎类似

extra 没有什么不对的，因为99%的框架都是这样来进行模板解析的，比如yii2：

public function renderPhpFile($_file_, $_params_ = [])    {        ob_start();        ob_implicit_flush(false);        extract($_params_, EXTR_OVERWRITE);        require($_file_);        return ob_get_clean();    }

有的甚至用 eval()，比如 dedecms。。。。。。。。。。。。。

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