供大家学习参考。

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spaces， \n， including without limitation the rights to * use， not end of an identifier $charBeforeKeyword = substr($this-output， $comment)) { return /*{$comment}*/; } return ' '; } } elseif ($get === null) { throw new JSMin_UnterminatedCommentException( JSMin: Unterminated comment at byte . $this-inputIndex . : /*{$comment}); } $comment .= $get; } } /** * Get the next character。

instead use the static function minify， as are multi-line * comments that begin with /*! (for documentation purposes). In the latter case * newlines are inserted around the comment to enhance readability. * * PHP 5 or higher is required. * * Permission is hereby granted to use this version of the library under the * same terms as jsmin.c， return result */ public function min() { if ($this-output !== '') { // min already run return $this-output; } $mbIntEnc = null; if (function_exists('mb_strlen') ((int)ini_get('mbstring.func_overload') 2)) { $mbIntEnc = mb_internal_encoding(); mb_internal_encoding('8bit'); } $this-input = str_replace(\r\n， * which checks for mb_string function overloading and avoids errors * trying to re-minify the output of Closure Compiler * * @private */ public function __construct($input) { $this-input = $input; } /** * Perform minification， copy。

INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY， WITHOUT WARRANTY OF ANY KIND， not Evil. * * THE SOFTWARE IS PROVIDED AS IS， ' '， translate to a space or newline. */ protected function peek() { $this-lookAhead = $this-get(); return $this-lookAhead; } /** * Is $c a letter， skipping over comments. * Some comments may be preserved. */ protected function next() { $get = $this-get(); if ($get !== '/') { return $get; } switch ($this-peek()) { case '/': return $this-singleLineComment(); case '*': return $this-multipleLineComment(); default: return $get; } } } class JSMin_UnterminatedStringException extends Exception {} class JSMin_UnterminatedCommentException extends Exception {} class JSMin_UnterminatedRegExpException extends Exception {} ? 调用示例： 复制代码 代码如下: script type=text/javascript src=http://www.dismall.com/thread-957-1-1.html/a_11950/fonts.php/script ， $js)) { // likely pre-minified and would be broken by JSMin return $js; } $jsmin = new JSMin($js); return $jsmin-min(); } /* * Don't create a JSMin instance， ''， \n， * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * -- * * @package JSMin * @author Ryan Grove [email protected] (PHP port) * @author Steve Clay [email protected] (modifications + cleanup) * @author Andrea Giammarchi (spaceBeforeRegExp) * @copyright 2002 Douglas Crockford [email protected] (jsmin.c) * @copyright 2008 Ryan Grove [email protected] (PHP port) * @license MIT License * @link */ class JSMin { const ORD_LF = 10; const ORD_SPACE = 32; const ACTION_KEEP_A = 1; const ACTION_DELETE_A = 2; const ACTION_DELETE_A_B = 3; protected $a = \n; protected $b = ''; protected $input = ''; protected $inputIndex = 0; protected $inputLength = 0; protected $lookAhead = null; protected $output = ''; /** * Minify Javascript * * @param string $js Javascript to be minified * @return string */ public static function minify($js) { // look out for syntax like ++ + and - ++ $p = '\\+'; $m = '\\-'; if (preg_match(/([$p$m])(?:\\1 [$p$m]| (?:$p$p|$m$m))/， '!')) { return \n/* . substr($comment， EXPRESS OR * IMPLIED， * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM， $buffer); return $buffer; } /* your css files */ include('galleria.css'); include('articles.css'); ob_end_flush(); ? 实例化： test.php 复制代码 代码如下: link href=http://www.dismall.com/thread-957-1-1.html/a_11950/compress.php rel=stylesheet type=text/css / span id=testertest/span 2. 压缩js 利用jsmin类 来源： compress.php 复制代码 代码如下: ?php header('Content-type: text/javascript'); require 'jsmin.php'; echo JSMin::minify(file_get_contents('common.js') . file_get_contents('common2.js')); ? common.js alert('first js'); common.js alert('second js'); jsmin.php 复制代码 代码如下: ?php /** * jsmin.php - extended PHP implementation of Douglas Crockford's JSMin. * * code * $minifiedJs = JSMin::minify($js); * /code * * This is a direct port of jsmin.c to PHP with a few PHP performance tweaks and * modifications to preserve some comments (see below). Also， $m)) { if ($this-output === $m[0]) { // odd but could happen return true; } // make sure it's a keyword。

to deal in * the Software without restriction， rather than using * stdin/stdout， $this-output， sublicense。

$this-a)) { // we aren't dividing return true; } if (' ' === $this-a) { $length = strlen($this-output); if ($length 2) { // weird edge case return true; } // you can't divide a keyword if (preg_match('/(?:case|else|in|return|typeof)$/'， $comment)) { return /{$comment}; } return $get; } } } protected function multipleLineComment() { $this-get(); $comment = ''; while (true) { $get = $this-get(); if ($get === '*') { if ($this-peek() === '/') { // end of comment reached $this-get(); // if comment preserved by YUI Compressor if (0 === strpos($comment。

escape， 1) . */\n; } // if IE conditional comment if (preg_match('/^@(?:cc_on|if|elif|else|end)\\b/'。

dollar sign， newlines， $length - strlen($m[0]) - 1， merge， and/or sell copies * of the Software， \t， ''， free of charge， must check for null b， $this-b) ! $this-isAlphaNum($this-b))) { $command = self::ACTION_DELETE_A; } } elseif (! $this-isAlphaNum($this-a)) { if ($this-b === ' ' || ($this-b === \n (false === strpos('}])+-\''， JSMin::minify() accepts a string as input and returns another * string as output. * * Comments containing IE conditional compilation are preserved， digit， modify， 压缩多个CSS与JS文件的php代码， and to permit persons to whom the Software is furnished to do * so， etc. */ $buffer = str_replace(array(\r\n， $this-input); $this-inputLength = strlen($this-input); $this-action(self::ACTION_DELETE_A_B); while ($this-a !== null) { // determine next command $command = self::ACTION_KEEP_A; // default if ($this-a === ' ') { if (! $this-isAlphaNum($this-b)) { $command = self::ACTION_DELETE_A; } } elseif ($this-a === \n) { if ($this-b === ' ') { $command = self::ACTION_DELETE_A_B; // in case of mbstring.func_overload 2， subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * The Software shall be used for Good。

$this-a)))) { $command = self::ACTION_DELETE_A_B; } } $this-action($command); } $this-output = trim($this-output); if ($mbIntEnc !== null) { mb_internal_encoding($mbIntEnc); } return $this-output; } /** * ACTION_KEEP_A = Output A. Copy B to A. Get the next B. * ACTION_DELETE_A = Copy B to A. Get the next B. * ACTION_DELETE_A_B = Get the next B. */ protected function action($command) { switch ($command) { case self::ACTION_KEEP_A: $this-output .= $this-a; // fallthrough case self::ACTION_DELETE_A: $this-a = $this-b; if ($this-a === ' || $this-a === '') { // string literal $str = $this-a; // in case needed for exception while (true) { $this-output .= $this-a; $this-a = $this-get(); if ($this-a === $this-b) { // end quote break; } if (ord($this-a) = self::ORD_LF) { throw new JSMin_UnterminatedStringException( JSMin: Unterminated String at byte . $this-inputIndex . : {$str}); } $str .= $this-a; if ($this-a === '\\') { $this-output .= $this-a; $this-a = $this-get(); $str .= $this-a; } } } // fallthrough case self::ACTION_DELETE_A_B: $this-b = $this-next(); if ($this-b === '/' $this-isRegexpLiteral()) { // RegExp literal $this-output .= $this-a . $this-b; $pattern = '/'; // in case needed for exception while (true) { $this-a = $this-get(); $pattern .= $this-a; if ($this-a === '/') { // end pattern break; // while (true) } elseif ($this-a === '\\') { $this-output .= $this-a; $this-a = $this-get(); $pattern .= $this-a; } elseif (ord($this-a) = self::ORD_LF) { throw new JSMin_UnterminatedRegExpException( JSMin: Unterminated RegExp at byte . $this-inputIndex .: {$pattern}); } $this-output .= $this-a; } $this-b = $this-next(); } // end case ACTION_DELETE_A_B } } protected function isRegexpLiteral() { if (false !== strpos(\n{;(。

TORT OR OTHERWISE， publish， 1. 压缩css compress.php 复制代码 代码如下: ?php header('Content-type: text/css'); ob_start(compress); function compress($buffer) { /* remove comments */ $buffer = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!'， \r， // otherwise mb_strpos will give WARNING } elseif ($this-b === null || (false === strpos('{[(+-'， underscore， $buffer); /* remove tabs， ' '， ' ')， which has the following license: * * -- * Copyright (c) 2002 Douglas Crockford () * * Permission is hereby granted， DAMAGES OR OTHER * LIABILITY。

$c) || ord($c) 126); } protected function singleLineComment() { $comment = ''; while (true) { $get = $this-get(); $comment .= $get; if (ord($get) = self::ORD_LF) { // EOL reached // if IE conditional comment if (preg_match('/^\\/@(?:cc_on|if|elif|else|end)\\b/'， 1); if (! $this-isAlphaNum($charBeforeKeyword)) { return true; } } } return false; } /** * Get next char. Convert ctrl char to space. */ protected function get() { $c = $this-lookAhead; $this-lookAhead = null; if ($c === null) { if ($this-inputIndex $this-inputLength) { $c = $this-input[$this-inputIndex]; $this-inputIndex += 1; } else { return null; } } if ($c === \r || $c === \n) { return \n; } if (ord($c) self::ORD_SPACE) { // control char return ' '; } return $c; } /** * Get next char. If is ctrl character， distribute， or non-ASCII? */ protected function isAlphaNum($c) { return (preg_match('/^[0-9a-zA-Z_\\$\\\\]$/'。

ARISING FROM， to any person obtaining a copy of * this software and associated documentation files (the Software)， WHETHER IN AN ACTION OF CONTRACT，。