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

【解决】同一url的http请求所获取的结果总是相同
曾经在WP7写过一个通过HTTP获取网页内容的小程序,当时一直没能够解决: 有一个网址,在每次点击刷新之后页面所呈现的内容都是不同的.但是进行HTTP请求时,结果将会一直重复. 从网上查资料得知,在请 ...
eclipse无法自动识别出svn项目
因为重新安装了svn插件,重启后发现原来的svn项目无法自动识别出来,连Team->Share Project都没有,而本地用tortoiseSvn是可以正常操作的. 后来我把项目删除然后重新导 ...
【PHP面向对象(OOP)编程入门教程】18.__call()处理调用错误
在程序开发中,如果在使用对象调用对象内部方法时候,调用的这个方法不存在那么程序就会出错,然后程序退出不能继续执行.那么可不可以在程序调用对象内部不存在的方法时,提示我们调用的方法及使用的参数不存在, ...
ubutu之mysql emma中文乱码问题解决
emma默认用apt-get 安装的话,emma是不支持中文的,配置文件或直接修改emma程序源文件(python).apt-get安装emmasudo apt-get install emma ...
MySQL编译安装
1.准备工作其官方站点为http://www.mysql.com/ 为了避免发生端口冲突.程序冲突现象.建议先查询MySQL软件的安装情况,确认没有使用以RPM方式安装的mysql-server.m ...
Android应用中返回键的监听及处理
MainActivity: package com.testnbackpressed; import android.os.Bundle; import android.view.KeyEvent ...
Interleaving String leetcode
Given s1, s2, s3, find whether s3 is formed by the interleaving of s1 and s2. For example,Given:s1 = ...
ES6中Arguments和Parameters用法解析
原文链接译文 ECMAScript 6 (也称 ECMAScript 2015) 是ECMAScript 标准的最新版本,显著地完善了JS中参数的处理方式.除了其它新特性外,我们还可以使用rest参 ...
SSH-Struts第一弹：ActionSupport类
Action继承了com.opensymphony.xwork2.ActionSupport. package com.candy.login; import com.opensymphony.xwo ...
HDU 1533 最小费用最大流（模板）
http://acm.hdu.edu.cn/showproblem.php?pid=1533 这道题直接用了模板题意:要构建一个二分图,家对应人,连线的权值就是最短距离,求最小费用要注意void ...

yii压缩

yii压缩的更多相关文章

随机推荐

热门专题