yii压缩

 application\components\controller.php

 protected function afterRender($view, &$output)

 {

 if(Yii::app()->params['compress_on']){

 Yii::import('ext.Compress', true);

 $output = Compress::minify($output, array('xhtml' => true));

 }

 }

extension\Compress.php

<?php

/**

 * Class Compress

 * @package Minify

 */

/**

 * Compress HTML

 *

 * This is a heavy regex-based removal of whitespace, unnecessary comments and

 * tokens. IE conditional comments are preserved. There are also options to have

 * STYLE and SCRIPT blocks compressed by callback functions.

 *

 * A test suite is available.

 *

 * @package Minify

 * @author Stephen Clay <steve@mrclay.org>

 */

class Compress {

    /**

     * @var boolean

     */

    protected $_jsCleanComments = true;

    /**

     * "Minify" an HTML page

     *

     * @param string $html

     *

     * @param array $options

     *

     * 'cssMinifier' : (optional) callback function to process content of STYLE

     * elements.

     *

     * 'jsMinifier' : (optional) callback function to process content of SCRIPT

     * elements. Note: the type attribute is ignored.

     *

     * 'xhtml' : (optional boolean) should content be treated as XHTML1.0? If

     * unset, minify will sniff for an XHTML doctype.

     *

     * @return string

     */

    public static function minify($html, $options = array()) {

        $min = new self($html, $options);

        return $min->process();

    }

    /**

     * Create a minifier object

     *

     * @param string $html

     *

     * @param array $options

     *

     * 'cssMinifier' : (optional) callback function to process content of STYLE

     * elements.

     *

     * 'jsMinifier' : (optional) callback function to process content of SCRIPT

     * elements. Note: the type attribute is ignored.

     *

     * 'jsCleanComments' : (optional) whether to remove HTML comments beginning and end of script block

     *

     * 'xhtml' : (optional boolean) should content be treated as XHTML1.0? If

     * unset, minify will sniff for an XHTML doctype.

     *

     * @return null

     */

    public function __construct($html, $options = array())

    {

        $this->_html = str_replace("\r\n", "\n", trim($html));

        if (isset($options['xhtml'])) {

            $this->_isXhtml = (bool)$options['xhtml'];

        }

        if (isset($options['cssMinifier'])) {

            $this->_cssMinifier = $options['cssMinifier'];

        }

        if (isset($options['jsMinifier'])) {

            $this->_jsMinifier = $options['jsMinifier'];

        }

        if (isset($options['jsCleanComments'])) {

            $this->_jsCleanComments = (bool)$options['jsCleanComments'];

        }

    }

    /**

     * Minify the markeup given in the constructor

     *

     * @return string

     */

    public function process()

    {

        if ($this->_isXhtml === null) {

            $this->_isXhtml = (false !== strpos($this->_html, '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML'));

        }

        $this->_replacementHash = 'MINIFYHTML' . md5($_SERVER['REQUEST_TIME']);

        $this->_placeholders = array();

        // replace SCRIPTs (and minify) with placeholders

        /*

            $this->_html = preg_replace_callback(

            '/(\\s*)<script(\\b[^>]*?>)([\\s\\S]*?)<\\/script>(\\s*)/i'

            ,array($this, '_removeScriptCB')

            ,$this->_html);

        */

        // replace STYLEs (and minify) with placeholders

        $this->_html = preg_replace_callback(

            '/\\s*<style(\\b[^>]*>)([\\s\\S]*?)<\\/style>\\s*/i'

            ,array($this, '_removeStyleCB')

            ,$this->_html);

        // remove HTML comments (not containing IE conditional comments).

        $this->_html = preg_replace_callback(

            '/<!--([\\s\\S]*?)-->/'

            ,array($this, '_commentCB')

            ,$this->_html);

        // replace PREs with placeholders

        $this->_html = preg_replace_callback('/\\s*<pre(\\b[^>]*?>[\\s\\S]*?<\\/pre>)\\s*/i'

            ,array($this, '_removePreCB')

            ,$this->_html);

        // replace TEXTAREAs with placeholders

        $this->_html = preg_replace_callback(

            '/\\s*<textarea(\\b[^>]*?>[\\s\\S]*?<\\/textarea>)\\s*/i'

            ,array($this, '_removeTextareaCB')

            ,$this->_html);

        // trim each line.

        // @todo take into account attribute values that span multiple lines.

        $this->_html = preg_replace('/^\\s+|\\s+$/m', '', $this->_html);

        // remove ws around block/undisplayed elements

        $this->_html = preg_replace('/\\s+(<\\/?(?:area|base(?:font)?|blockquote|body'

            .'|caption|center|cite|col(?:group)?|dd|dir|div|dl|dt|fieldset|form'

            .'|frame(?:set)?|h[1-6]|head|hr|html|legend|li|link|map|menu|meta'

            .'|ol|opt(?:group|ion)|p|param|t(?:able|body|head|d|h||r|foot|itle)'

            .'|ul)\\b[^>]*>)/i', '$1', $this->_html);

        // remove ws outside of all elements

        $this->_html = preg_replace(

            '/>(\\s(?:\\s*))?([^<]+)(\\s(?:\s*))?</'

            ,'>$1$2$3<'

            ,$this->_html);

        // use newlines before 1st attribute in open tags (to limit line lengths)

        $this->_html = preg_replace('/(<[a-z\\-]+)\\s+([^>]+>)/i', "$1 $2", $this->_html);

        //过滤两个标签之间的换行和空格

        $pat = array('#(</[a-z]+>)\n+<#', '#>\s+<#');

        $this->_html = preg_replace($pat, array("$1<", "><"), $this->_html);

        // fill placeholders

        $this->_html = str_replace(

            array_keys($this->_placeholders)

            ,array_values($this->_placeholders)

            ,$this->_html

        );

        // issue 229: multi-pass to catch scripts that didn't get replaced in textareas

        $this->_html = str_replace(

            array_keys($this->_placeholders)

            ,array_values($this->_placeholders)

            ,$this->_html

        );

        return $this->_html;

    }

    protected function _commentCB($m)

    {

        return (0 === strpos($m[1], '[') || false !== strpos($m[1], '<!['))

            ? $m[0]

            : '';

    }

    protected function _reservePlace($content)

    {

        $placeholder = '%' . $this->_replacementHash . count($this->_placeholders) . '%';

        $this->_placeholders[$placeholder] = $content;

        return $placeholder;

    }

    protected $_isXhtml = null;

    protected $_replacementHash = null;

    protected $_placeholders = array();

    protected $_cssMinifier = null;

    protected $_jsMinifier = null;

    protected function _removePreCB($m)

    {

        return $this->_reservePlace("<pre{$m[1]}");

    }

    protected function _removeTextareaCB($m)

    {

        return $this->_reservePlace("<textarea{$m[1]}");

    }

    protected function _removeStyleCB($m)

    {

        $openStyle = "<style{$m[1]}";

        $css = $m[2];

        // remove HTML comments

        $css = preg_replace('/(?:^\\s*<!--|-->\\s*$)/', '', $css);

        // remove CDATA section markers

        $css = $this->_removeCdata($css);

        // minify

        $minifier = $this->_cssMinifier

            ? $this->_cssMinifier

            : 'trim';

        $css = call_user_func($minifier, $css);

        return $this->_reservePlace($this->_needsCdata($css)

            ? "{$openStyle}/*<![CDATA[*/{$css}/*]]>*/</style>"

            : "{$openStyle}{$css}</style>"

        );

    }

    protected function _removeScriptCB($m)

    {

        $openScript = "<script{$m[2]}";

        $js = $m[3];

        // whitespace surrounding? preserve at least one space

        $ws1 = ($m[1] === '') ? '' : ' ';

        $ws2 = ($m[4] === '') ? '' : ' ';

        // remove HTML comments (and ending "//" if present)

        if ($this->_jsCleanComments) {

            $js = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/', '', $js);

        }

        // remove CDATA section markers

        $js = $this->_removeCdata($js);

        // minify

        $minifier = $this->_jsMinifier

            ? $this->_jsMinifier

            : 'trim';

        $js = call_user_func($minifier, $js);

        return $this->_reservePlace($this->_needsCdata($js)

            ? "{$ws1}{$openScript}/*<![CDATA[*/{$js}/*]]>*/</script>{$ws2}"

            : "{$ws1}{$openScript}{$js}</script>{$ws2}"

        );

    }

    protected function _removeCdata($str)

    {

        return (false !== strpos($str, '<![CDATA['))

            ? str_replace(array('<![CDATA[', ']]>'), '', $str)

            : $str;

    }

    protected function _needsCdata($str)

    {

        return ($this->_isXhtml && preg_match('/(?:[<&]|\\-\\-|\\]\\]>)/', $str));

    }

}

yii压缩的更多相关文章

Yii 2.x html 代码压缩
<?php namespace Pangu\web; use yii\base\Component; /** * html格式响应内容格式化 * @author zhouzhian * */ c ...
YII框架源码分析(百度PHP大牛创作-原版-无广告无水印)
YII 框架源码分析百度联盟事业部——黄银锋目录 1. 引言 3 1.1.Yii 简介 3 1.2.本文内容与结构 3 2.组件化与模块化 4 2.1.框架加载和运行流程 4 ...
YII 框架使用之——创建应用
linux环境为UBUNTU14.04,YII框架的版本是1.1.17 将下载的YII解压缩,压缩后会有三个文件夹,”demos,requirements,framework”,demos 当然就是演 ...
YII 事件event和行为Behavior
To declare an event in your CComponent child class, you should add a method with aname starting with ...
yii性能调节
网络应用程序的性能受很多因素的影响.数据库存取,文件系统操作,网络带宽等都是潜在的影响因素. Yii 已在各个方面减少框架带来的性能影响.但是在用户的应用中仍有很多地方可以被改善来提高性能. 1. 开 ...
Yii框架2.0的过滤器
过滤器是控制器动作执行之前或之后执行的对象. 例如访问控制过滤器可在动作执行之前来控制特殊终端用户是否有权限执行动作, 内容压缩过滤器可在动作执行之后发给终端用户之前压缩响应内容. 过滤器可包含 ...
Composer安装yii2-imagine 压缩,剪切,旋转,水印
安装:composer require --prefer-dist yiisoft/yii2-imagine 查看是否安装成功, 安装了两个目录分别是 vendor/imagine vendor/yi ...
开始学习Yii
YII是我一直想学的一个框架,之前看过TP3.2和5.0.Yii是Yes it is 的缩写. 我采用下载源码的方式安装,解压到web目录.以前用过Composer,Yii官网也推荐用Composer ...
ASP.NET Core 中间件之压缩、缓存
前言今天给大家介绍一下在 ASP.NET Core 日常开发中用的比较多的两个中间件,它们都是出自于微软的 ASP.NET 团队,他们分别是 Microsoft.AspNetCore.Respons ...

随机推荐

ML_R kNN
邻近算法 K最近邻(kNN,k-NearestNeighbor)分类算法是数据挖掘分类技术中最简单的方法之一.所谓K最近邻,就是k个最近的邻居的意思,说的是每个样本都可以用它最接近的k个邻居来代表. ...
nyoj 364 田忌赛马（贪心）
田忌赛马时间限制:3000 ms | 内存限制:65535 KB 难度:3 描述 Here is a famous story in Chinese history. "That ...
HDOJ 4717 The Moving Points
The Moving Points Time Limit: 6000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others ...
php正则预查
php正则预查 // 把ing结尾的单词词根部分(即不含ing部分)找出来$str = 'hello ,when i am working , don not coming';零宽度:站在原地往前看, ...
基于SSL协议的双向认证 - 数字证书 [2]
1.1 数字证书 1.1.1 概念理解一种文件的名称,例如一个机构或人的签名,能够证明这个机构或人的真实性.简而言之数字证书是一种网络上证明持有者身份的文件,同时还包括有公钥.证书是由国际 ...
我的Java书单之优秀的入门书
我始终相信,学习任何一门新技术,该技术相关的优秀书籍总是最好的资料.当然了,优秀的视频教程能帮组你快速地了解该技术,但是要深入和系统地去学习该技术,好的书籍就显得尤为重要了.结合我自己学习java的经 ...
iOS开发——项目篇—高仿百思不得姐
01 一.包装为导航控制器 UINavigationController *nav = [[UINavigationController alloc] initWithRootViewControll ...
总结六条对我们学习Linux系统有用的忠告
接触linux需要的是端正自己的态度,这个玩意可不是一天两天就能拿得下的.学习个基础,能装系统.能装常见服务.能编译.能配置存储空间.能配置系统参数.能简单查看系统负载等基本够用.但这些只保证能做机房 ...
JDIC 访问Web时NullPointerException
Exception in thread "EventThread" java.lang.NullPointerException at org.jdeskto ...
跟着百度学PHP[4]OOP面对对象编程-10-静态关键字static
使用static关键字可以将类中的成员标识为静态的,既可以用来标识成员属性,也可以用来标识成员方法. 以Person类为例,如果在person类中有一个“$country=’china’”的成员属性, ...

yii压缩

yii压缩的更多相关文章

随机推荐

热门专题