Alexander Yancharuk 的解决方案几乎是完美的,他只是忘记忽略双引号,导致他的答案在包含代码的 jquery.min.js 上中断:replace(Fb,yb[1]+"//")
请在下面找到更正的版本:
$output = "
//remove comment
this1 //remove comment
this2 /* remove comment */
this3 /* remove
comment */
this4 /* * * remove
* * * *
comment * * */
this5 http://removecomment.com
id = id.replace(/\//g,''); //do not remove the regex //
HTTP+'//www.googleadservices.com/pagead/conversion'
";
$pattern = '/(?:(?:\/\*(?:[^*]|(?:\*+[^*\/]))*\*+\/)|(?:(?<!\:|\\\|\'|\")\/\/.*))/';
$output = preg_replace($pattern, '', $output);
echo nl2br($output);
我用它在 PHP 中创建了一个基于 Manas Tungare 示例的实时 JS 压缩:http: //manas.tungare.name/software/css-compression-in-php/
<?php
/**
* On-the-fly JS Compression by A. Heiligtag
* Based on On-the-fly CSS Compression by Manas Tungare.
*
* In order to minimize the number and size of HTTP requests for JS content,
* this script combines multiple JS files into a single file and compresses
* it on-the-fly.
*
*/
$cssFiles = array(
//<!-- Bootstrap -->
// <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
"./js/jquery-1.11.3.min.js",
// <!-- Bootstrap core JavaScript
"./js/bootstrap.min.js",
// <!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
"./js/ie10-viewport-bug-workaround.js",
// <!-- Jasny bootstrap -->
"./js/jasny-bootstrap.min.js",
// <!-- color picker : https://github.com/istvan-ujjmeszaros/bootstrap-colorpickersliders / http://www.virtuosoft.eu/code/bootstrap-colorpickersliders/ -->
// <!-- ‘Polyglot’ Language Switcher 2 : http://www.ixtendo.com/polyglot-language-switcher-2/ -->
"./js/jquery-polyglot.language.switcher.js"
);
/**
* Ideally, you wouldn't need to change any code beyond this point.
*/
$buffer = "";
foreach ($cssFiles as $cssFile) {
$buffer .= file_get_contents($cssFile);
}
// Remove comments
$buffer = preg_replace('/(?:(?:\/\*(?:[^*]|(?:\*+[^*\/]))*\*+\/)|(?:(?<!\:|\\\|\'|\")\/\/.*))/', '', $buffer);
// Remove space after colons
$buffer = str_replace(': ', ':', $buffer);
// Remove space before equal signs
$buffer = str_replace(' =', '=', $buffer);
// Remove space after equal signs
$buffer = str_replace('= ', '=', $buffer);
// Remove whitespace
$buffer = str_replace(array("\r\n\r\n", "\n\n", "\r\r", '\t', ' ', ' ', ' '), '', $buffer);
// Enable GZip encoding.
ob_start("ob_gzhandler");
// Enable caching
header('Cache-Control: public');
// Expire in one day
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 86400) . ' GMT');
// Set the correct MIME type, because Apache won't set it for us
header("Content-type: application/javascript");
// Write everything out
echo($buffer);
?>