php combo,combo.php

php combo,combo.php"/>

php combo,combo.php

/* 不压缩 */

$MINIFY = false;

/* 默认cdn地址 */

$YOUR_CDN = '/';

require 'jsmin.php';

require 'cssmin.php';

/**

* set e-tag cache

*/

function cache($etag){

$etag = $etag; //标记字符串，可以任意修改

if ($_SERVER['HTTP_IF_NONE_MATCH'] == $etag){

header('Etag:'.$etag,true,304);

exit;

}

else header('Etag:'.$etag);

}

function get_contents($url){

$ch =curl_init($url);

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$str =curl_exec($ch);

curl_close($ch);

if ($str !==false) {

return $str;

}else {

return '';

}

}

//得到扩展名

function get_extend($file_name) {

$extend =explode("." , $file_name);

$va=count($extend)-1;

return $extend[$va];

}

/**

* logic begin

*/

$files = array();

//cdn上存在的各种可能的文件类型

$header = array(

'js' => 'Content-Type: application/x-javascript',

'css' => 'Content-Type: text/css',

'jpg' => 'Content-Type: image/jpg',

'gif' => 'Content-Type: image/gif',

'png' => 'Content-Type: image/png',

'jpeg' => 'Content-Type: image/jpeg',

'swf' => 'Content-Type: application/x-shockwave-flash'

);

$type = '';

foreach ($_REQUEST as $k => $v) {

//最常见的替换规则

$k = preg_replace(

array('/_(js|css|gif|png|jpg|jpeg|swf)$/','/yui\/2_8_0r4/','/yui\/3_0_0/','/(\d+)_(\d+)_(\d+)/','/(\d+)_(\d+)/','/_v(\d)/'),

array('.$1','yui/2.8.0r4','yui/3.0.0','$1.$2.$3','$1.$2','.v$1'),

trim($k,'/')

);

//在这里添加转换过头的各种情况

$k = str_replace('global.v5.css','global_v5.css',$k);

$k = str_replace('detail.v2.css','detail_v2.css',$k);

$k = str_replace('cubee_combo','cubeebo',$k);

if(empty($type)) {

$type = get_extend($k);

}

//文件存在

if(file_exists($k)) {

$in_str = file_get_contents($k);

//处理文本

if(preg_match('/js|css/',$type)){

//$files[] = file_get_contents($k);

if($MINIFY == true && $type == 'js'){

$files[] = JSMin::minify($in_str);

}else if($MINIFY == true && $type == 'css'){

$files[] = cssmin::minify($in_str);

}else{

$files[] = $in_str;

}

}else{

//处理非文本

$files[] = array($in_str);

}

}else{

//文件不存在

$in_sta = file($YOUR_CDN.$k);

//文本的处理

if(preg_match('/js|css/',$type)){

$files[] = '/* '.$k.' */';

$inner_str = join('',$in_sta);

if($MINIFY == true && $type == 'js'){

$files[] = JSMin::minify($inner_str);

}else if($MINIFY == true && $type == 'css'){

$files[] = cssmin::minify($inner_str);

}else{

$files[] = $inner_str;

}

}else{

//非文本的处理

$files[] = $in_sta;

}

}

}

header("Expires: " . date("D, j M Y H:i:s", strtotime("now + 10 years")) ." GMT");

//文本的处理

header($header[$type]);//文件类型

if(preg_match('/js|css/',$type)){

$result = join("\n",$files);

}else{

//非文本的处理

$result = join("",$files[0]);

}

cache(md5($result));//etag,处理Etag是否多余?

echo $result;

?>

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