emlog 无插件实现网站源码压缩 二
之前分享过《emlog 无插件实现网站源码压缩》,此方法需要修改模板中的相关代码,当切换模板后失效,每次都要修改模板,有些麻烦,所以提供以下代码来解决此问题。
在 include\lib\function.base.php 新增代码
function emHTMLCompression($html) { $chunks = preg_split('/(<!--<nocompress>-->.*?<!--<\/nocompress>-->|<nocompress>.*?<\/nocompress>|<pre.*?\/pre>|<textarea.*?\/textarea>|<script.*?\/script>)/msi', $html, -1, PREG_SPLIT_DELIM_CAPTURE); $compress = ''; foreach ($chunks as $c) { if (strtolower(substr($c, 0, 19)) == '<!--<nocompress>-->') { $c = substr($c, 19, strlen($c) - 19 - 20); $compress .= $c; continue; } else if (strtolower(substr($c, 0, 12)) == '<nocompress>') { $c = substr($c, 12, strlen($c) - 12 - 13); $compress .= $c; continue; } else if (strtolower(substr($c, 0, 4)) == '<pre' || strtolower(substr($c, 0, 9)) == '<textarea') { $compress .= $c; continue; } else if (strtolower(substr($c, 0, 7)) == '<script' && strpos($c, '//') != false && (strpos($c, "\r") !== false || strpos($c, "\n") !== false)) { // JS代码,包含“//”注释的,单行代码不处理 $tmps = preg_split('/(\r|\n)/ms', $c, -1, PREG_SPLIT_NO_EMPTY); $c = ''; foreach ($tmps as $tmp) { if (strpos($tmp, '//') !== false) { // 对含有“//”的行做处理 if (substr(trim($tmp), 0, 2) == '//') { // 开头是“//”的就是注释 continue; } $chars = preg_split('//', $tmp, -1, PREG_SPLIT_NO_EMPTY); $is_quot = $is_apos = false; foreach ($chars as $key => $char) { if ($char == '"' && $chars[$key - 1] != '\\' && !$is_apos) { $is_quot = !$is_quot; } else if ($char == '\'' && $chars[$key - 1] != '\\' && !$is_quot) { $is_apos = !$is_apos; } else if ($char == '/' && $chars[$key + 1] == '/' && !$is_quot && !$is_apos) { $tmp = substr($tmp, 0, $key); // 不是字符串内的就是注释 break; } } } $c .= $tmp; } } $c = preg_replace('/[\\n\\r\\t]+/', ' ', $c); // 清除换行符,清除制表符 $c = preg_replace('/\\s{2,}/', ' ', $c); // 清除额外的空格 $c = preg_replace('/>\\s</', '> <', $c); // 清除标签间的空格 $c = preg_replace('/\\/\\*.*?\\*\\//i', '', $c); // 清除 CSS & JS 的注释 $c = preg_replace('/<!--[^!]*-->/', '', $c); // 清除 HTML 的注释 $compress .= $c; } return $compress; }
修改 include\lib\view.php 代码
public static function output() { $content = ob_get_clean(); if (Option::get('isgzipenable') == 'y' && function_exists('ob_gzhandler')) { ob_start('ob_gzhandler'); } else { ob_start(); } echo $content; ob_end_flush(); exit; }
修改为
public static function output() { $content = ob_get_clean(); $initial = strlen($content); if (Option::get('isgzipenable') == 'y' && function_exists('ob_gzhandler')) { ob_start('ob_gzhandler'); } else { ob_start(); } $content_out = $content; $final = strlen($content_out); $savings = ($initial - $final) / $initial * 100; $savings = round($savings, 2); $content_out .= PHP_EOL . "<!--压缩前的大小: $initial bytes; 压缩后的大小: $final bytes; 节约:$savings% -->"; echo $content_out; ob_end_flush(); exit; }
以上部分代码源自菜鸟建站,感谢。