使用php对js进行混淆加密，具体方法如下：

<?php

//js路径
$jsPath = __DIR__.'/assets/js/*';

//不需要压缩的JS
$exclude = array(
    'jQuery.ui.position.min.js',
    'easy_validator.pack.js',
    'easydialog.min.js',
    'jquery.ad-gallery.js',
    'jquery.autocomplete.js',
    'jquery.bgiframe.min.js',
    'jquery.fancybox-1.3.4.pack.js',
    'jquery.min.js',
    'jquery.mousewheel-3.0.4.pack.js',
    'jquery.uploadify.js',
    'jquery.validationEngine-zh_CN.js',
    'jquery.validationEngine.js',
    'exportting.js',
    'highcharts.js',
    'jquery.bgiframe.min.js',
);
  
//js混淆加密并更换名称   
foreach(glob($jsPath) as $filePath)
{
    $fileName = array_pop(explode('/',$filePath));
    if( !in_array($fileName,$exclude) )
    {
        $content = file_get_contents($filePath);
        //js混淆
        $params = array(
            'code' => $content,
            'operate' => 'uglify',
        );
        
        $response = remote::post($params);
        if( $response['status'] == true)
        {
            //js加密
            $params = array(
                'operate' => 'pack',
                'code' => $response['text'],
            );
            $response = remote::post($params);
            if( $response['status'] == true)
            {
                $text = $response['text'];
                file_put_contents($filePath,$text);
                //更换js文件名
                $id = uuid(false).'.js';
                $newPath = str_replace($fileName,$id,$filePath);
                rename($filePath,$newPath);
                error_log("{$filePath}======>{$newPath}\n", 3, "log.txt");
            }
        }            
    }
    else
    {
        $id = uuid(false).'.js';
        $newPath = str_replace($fileName,$id,$filePath);
        rename($filePath,$newPath);
        error_log("{$filePath}======>{$newPath}\n", 3, "log.txt");
    }

    sleep(1);
}

class remote
{
    public static $timeout = 30;
    const HTTP_OK = 200;
    const HTTP_FAIL = 401;
    const HTTP_ERROR = 500;

    public static function post($params=array())
    {
        $paramss = '';
        $headers[] = 'Accept    application/json, text/javascript, */*; q=0.01';
        $headers[] = 'Content-Type  application/x-www-form-urlencoded; charset=UTF-8';
        $headers[] = 'Accept-Language   zh-cn,zh;q=0.8,en-us;q=0.5,en;q=0.3';
        $user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:20.0) Gecko/20100101 Firefox/20.0';
        $ch = curl_init('http://tool.lu/js/ajax.html');
        curl_setopt($ch,CURLOPT_HTTPHEADER, $headers); 
        curl_setopt($ch,CURLOPT_REFERER,'http://tool.lu/js/'); 
        curl_setopt($ch,CURLOPT_USERAGENT,$user_agent);
        curl_setopt($ch,CURLOPT_TIMEOUT,self::$timeout);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
        if(!empty($params)) {
            curl_setopt($ch,CURLOPT_POST, 1);
            curl_setopt($ch,CURLOPT_POSTFIELDS,$params);
        }
        $response = curl_exec($ch);
        $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        switch($status) {
            case self::HTTP_OK:
            case self::HTTP_FAIL:
                $json = json_decode($response, true);

                break;
            case self::HTTP_ERROR:
            default:
                $json = null;
                break;
        }

        curl_close($ch);
        return $json;
    }

}

function uuid( $more = true, $admin = false )
{
    if ( $more )
    {
        return uniqid( md5( mt_rand() ), true );
    }
    else
    {
        if ( $admin ) return uniqid( "zzz", false );
        return uniqid( create_guid_section( 3 ), false );
    }
}


function create_guid_section( $characters )
{
    $return = "";
    for ( $i = 0; $i < $characters; $i++ )
    {
        $return .= dechex( mt_rand( 0, 15 ) );
    }
    return $return;
}