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PHP实现动态压缩js与css文件的方法

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简介本文实例讲述了PHP实现动态压缩js与css文件的方法。分享给大家供大家参考，具体如下：正式发布产品时，我们希望将项目里的js，css合并压缩，以减少http请求、防止轻易查看源代码。使用只需要在头部引入一下代码即可：demo</t</div> <div class="news_infos"><div id="MyContent"><p>本文实例讲述了PHP实现动态压缩js与css文件的方法。分享给大家供大家参考，具体如下：</p> <p>正式发布产品时，我们希望将项目里的js，css合并压缩，以减少http请求、防止轻易查看源代码。</p> <p><strong>使用</strong></p> <p>只需要在头部引入一下代码即可：</p> <div class="htmlcode"> <pre class="brush:php;"> <meta charset="utf-8"/> <title>demo</title> <"stylesheet" type="text/css" href="<" rel="external nofollow" > <script src="/UploadFiles/2021-04-02/<"> <p>这段代码会在指定的目录(例如common/)里生成压缩过后的js和css.每次更新了js,css内容，请先删除生成的压缩文件。</p> <p>示例：</p> <div class="htmlcode"> <pre class="brush:php;"> 4e387d5edce14cc2bd6396f6ebb7921b.css 7c10211f113f3175489196d336d67734.js </pre> </div> <p><strong>注意：</strong></p> <p>编写的css和js文件一定要符合规范。例如一定要加分号。js的function可以不加分号。</p> <p><strong>引用的资源</strong></p> <div class="htmlcode"> <pre class="brush:php;"> /** * 合并压缩css */ function parse_css($urls) { $url = md5(implode(',', $urls)); $path = FCPATH. 'static/parse/'; $css_url = $path . $url . '.css'; if (!file_exists($css_url)) { if (!file_exists($path)) mkdir($path, 0777); $css_content = ''; foreach ($urls as $url) { $css_content .= @file_get_contents($url); } $css_content = str_replace("\r\n", '', $css_content); //清除换行符 $css_content = str_replace("\n", '', $css_content); //清除换行符 $css_content = str_replace("\t", '', $css_content); //清除制表符 $css_content = str_replace("../images/", "./../common/images/", $css_content); @file_put_contents($css_url, $css_content); } $css_url = str_replace(FCPATH, '', $css_url); return $css_url; } /** * 合并压缩js */ function parse_script($urls) { $url = md5(implode(',', $urls)); $path = FCPATH. '/static/parse/'; $js_url = $path . $url . '.js'; if (!file_exists($js_url)) { if (!file_exists($path)) mkdir($path, 0777); load_qy_lib('JavaScriptPacker'); $js_content = ''; foreach ($urls as $url) { $append_content = @file_get_contents($url) . "\r\n"; $packer = new JavaScriptPacker($append_content); $append_content = $packer->_basicCompression($append_content); $js_content .= $append_content; } @file_put_contents($js_url, $js_content); } $js_url = str_replace(FCPATH, '', $js_url); return $js_url; } </pre> </div> <p>项目里引用到第三方类库JavaScriptPacker可以在github下载：</p> <p>gkralik/php-uglifyjs<br> https://github.com/gkralik/php-uglifyjs</p> <div class="htmlcode"> <pre class="brush:php;"> /** * 9 April 2008. version 1.1 * * This is the php version of the Dean Edwards JavaScript's Packer, * Based on : * * ParseMaster, version 1.0.2 (2005-08-19) Copyright 2005, Dean Edwards * a multi-pattern parser. * KNOWN BUG: erroneous behavior when using escapeChar with a replacement * value that is a function * * packer, version 2.0.2 (2005-08-19) Copyright 2004-2005, Dean Edwards * * License: http://creativecommons.org/licenses/LGPL/2.1/ * * Ported to PHP by Nicolas Martin. * * ---------------------------------------------------------------------- * changelog: * 1.1 : correct a bug, '\0' packed then unpacked becomes '\'. * ---------------------------------------------------------------------- * * Changes: * 2014-08-28: grkalik: change class for composer support. no functionality change. * */ </pre> </div> <p><strong>PS：这里再为大家推荐几款相似的在线工具供大家参考：</strong></p> <p><strong>JavaScript压缩/格式化/加密工具：<br> </strong>http://tools.jb51.net/code/jscompress</p> <p><strong>在线CSS代码压缩、格式化工具：<br> </strong>http://tools.jb51.net/code/css</p> <p>更多关于PHP相关内容感兴趣的读者可查看本站专题：《php文件操作总结》、《PHP目录操作技巧汇总》、《PHP基本语法入门教程》、《PHP运算与运算符用法总结》、《php字符串(string)用法总结》、《PHP数组(Array)操作技巧大全》、《PHP数据结构与算法教程》及《php程序设计算法总结》</p> <p>希望本文所述对大家PHP程序设计有所帮助。</p></div> </div> </div> <div class="share"> </div> <div class="nextinfo"> <p>上一篇：<a href="/3g/1/141253.html" title="PHP简单实现解析xml为数组的方法">PHP简单实现解析xml为数组的方法</a></p> <p>下一篇：<a href="/3g/1/141255.html" title="Yii2框架数据验证操作实例详解">Yii2框架数据验证操作实例详解</a></p> </div> <div class="otherlink"> <h2>最新资源</h2> <ul> <li><a href="/3g/1/623703.html" title="群星《奔赴！万人现场第2期》[FLAC/分轨]">群星《奔赴！万人现场第2期》[FLAC/分轨]</a></li> <li><a href="/3g/1/623702.html" title="群星《奇妙浪一夏 (上海迪士尼度假区音乐">群星《奇妙浪一夏 (上海迪士尼度假区音乐</a></li> <li><a href="/3g/1/623701.html" title="群星《奇妙浪一夏 (上海迪士尼度假区音乐">群星《奇妙浪一夏 (上海迪士尼度假区音乐</a></li> <li><a href="/3g/1/623700.html" title="【古典音乐】詹姆斯·高威《季节》1993[WA">【古典音乐】詹姆斯·高威《季节》1993[WA</a></li> <li><a href="/3g/1/623699.html" title="贝拉芳蒂《卡里普索之王》SACD[WAV+CUE]">贝拉芳蒂《卡里普索之王》SACD[WAV+CUE]</a></li> <li><a href="/3g/1/623698.html" title="小骆驼-《草原狼2(蓝光CD)》[原抓WAV+CUE">小骆驼-《草原狼2(蓝光CD)》[原抓WAV+CUE</a></li> <li><a href="/3g/1/623697.html" title="群星《欢迎来到我身边电影原声专辑》[32">群星《欢迎来到我身边电影原声专辑》[32</a></li> <li><a href="/3g/1/623696.html" title="群星《欢迎来到我身边电影原声专辑》[FL">群星《欢迎来到我身边电影原声专辑》[FL</a></li> <li><a href="/3g/1/623695.html" title="雷婷《梦里蓝天HQⅡ》 2023头版限量编号低">雷婷《梦里蓝天HQⅡ》 2023头版限量编号低</a></li> <li><a href="/3g/1/623694.html" title="群星《2024好听新歌42》AI调整音效【WAV分">群星《2024好听新歌42》AI调整音效【WAV分</a></li> </ul> </div> </div> <div class="sidebar"> <div class="cloud"><h2 class="hometitle">标签云</h2><ul><a href="/search.asp?key=1080P高清&m=1">1080P高清<span>(5)</span></a><a href="/search.asp?key=高清电影&m=1">高清电影<span>(5)</span></a><a href="/search.asp?key=百度云盘&m=1">百度云盘<span>(5)</span></a><a href="/search.asp?key=网盘下载&m=1">网盘下载<span>(4)</span></a><a href="/search.asp?key=破解软件&m=1">破解软件<span>(4)</span></a><a href="/search.asp?key=绿色软件&m=1">绿色软件<span>(4)</span></a><a href="/search.asp?key=磁力链接&m=1">磁力链接<span>(3)</span></a><a href="/search.asp?key=强度天梯&m=1">强度天梯<span>(3)</span></a><a href="/search.asp?key=福利资源&m=1">福利资源<span>(2)</span></a><a href="/search.asp?key=王者荣耀&m=1">王者荣耀<span>(2)</span></a><a href="/search.asp?key=黑钻活动&m=1">黑钻活动<span>(2)</span></a><a href="/search.asp?key=WPS会员&m=1">WPS会员<span>(2)</span></a><a href="/search.asp?key=刷图排行&m=1">刷图排行<span>(1)</span></a><a href="/search.asp?key=网盘限速&m=1">网盘限速<span>(1)</span></a><a href="/search.asp?key=鬼灭之刃&m=1">鬼灭之刃<span>(1)</span></a><a href="/search.asp?key=免费韩国漫画&m=1">免费韩国漫画<span>(1)</span></a><a href="/search.asp?key=宫本重做&m=1">宫本重做<span>(1)</span></a><a href="/search.asp?key=免费动漫&m=1">免费动漫<span>(1)</span></a></ul></div> </div> <div class="sidebar"> 友情链接:<a href="http://www.imxmx.com/" title="杰晶网络" target="_blank">杰晶网络</a> <a href="/" title="DDR爱好者之家" target="_blank">DDR爱好者之家</a> <a href="http://www.nqxw.com/" title="南强小屋" target="_blank">南强小屋</a> <a href="http://www.paidiu.com/" title="黑松山资源网" target="_blank">黑松山资源网</a> <a href="http://www.dyhadc.com/" title="白云城资源网" target="_blank">白云城资源网</a> <a href="/sitemap1.xml">站点地图</a> <a href="/sitemap.xml">SiteMap</a> </div> </article> <footer> <p>Design by <a href="http://m.ddrfans.com">DDR爱好者之家</a> <a href="http://m.ddrfans.com">http://m.ddrfans.com</a></p> </footer> <script src="/images3g/nav.js"></script> <script type="text/javascript"> jQuery.noConflict(); 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