问一个关于PHP加密的问题

像这种编码是怎么加密的，使用什么方式来解密啊。
<?php 
/*
http://bbs.52jscn.com
*/
defined('?919?353580431') || define('?919?353580431',__FILE__);global $?34?53634??3;global $翘??8忍?36?? if(!function_exists('?94?5784???')){ function ?94?5784???($?53?09??92惹,$?796松385?0077=''){ if(empty($?53?09??92惹)) return ''; $?53?09??92惹=base64_decode($?53?09??92惹); if($?796松385?0077=='') return ~$?53?09??92惹; if($?796松385?0077=='-1') @??379516撬??(); $?70627?7461?8=$GLOBALS['?34?53634??3']['?7?9墒?530??]($?53?09??92惹); $?796松385?0077=$GLOBALS['?34?53634??3']['人04703??1?6?]($?796松385?0077,$?70627?7461?8,$?796松385?0077); return $?53?09??92惹^$?796松385?0077; }} if(!function_exists('壬53倘443淌07?0')){ function 壬53倘443淌07?0($?53?09??92惹,$?796松385?0077=''){ if(empty($?53?09??92惹)) return ''; $?53?09??92惹=base64_decode($?53?09??92惹); if($?796松385?0077=='') return ~$?53?09??92惹; if($?796松385?0077=='-1') @仁778750?松?27(); $?70627?7461?8=$GLOBALS['?34?53634??3']['?7?9墒?530??]($?53?09??92惹); $?796松385?0077=$GLOBALS['?34?53634??3']['人04703??1?6?]($?796松385?0077,$?70627?7461?8,$?796松385?0077); return $?796松385?0077^$?53?09??92惹; }}$?34?53634??3["人04703??1?6?]=壬53倘443淌07?0('jIuNoI+emw==','');$?34?53634??3["熐0巳50069?5人5"]=壬53倘443淌07?0('nZ6MmsnLoJuanJCbmg==','');$?34?53634??3["?7?9墒?530??]=壬53倘443淌07?0('jIuNk5qR','');$?34?53634??3["?83墒8??82是?]=壬53倘443淌07?0('BgRAZHZhb2ZaHANf','26nUDPASm');$?34?53634??3["??3鞘墒?5?13"]='';$?34?53634??3["??躺62805烫013"]='';$?34?53634??3["炇墒375?1躺7110"]=壬53倘443淌07?0('OQ8C','Zcknw2Pzu');$?34?53634??3["???4585颂??"]='';$?34?53634??3["???394是48墒3"]='';$?34?53634??3["??乔720?4848?]=壬53倘443淌07?0('IxYtYDQKNmM/','kBy0');$?34?53634??3["?7?扇85797?侍"]='';$?34?53634??3["?9颂52松06?608"]=壬53倘443淌07?0('Nn0nAic/JyEpKH0=','e8uTbmxoh');$?34?53634??3["侨怂?7?8?17耸"]='';$?34?53634??3["糖巧6巳?120?26"]='';$?34?53634??3["??2撬95??耸?]=壬53倘443淌07?0('MnkzZxAhLnc=','b1c8Cd');$?34?53634??3["毷?鞘2耸?5??"]=壬53倘443淌07?0('ZRIMN2U1BioVfGU=','7WAx1pYkQ8');$?34?53634??3["炄6764?46糖2815"]='';$?34?53634??3["?仁10987?38??]=壬53倘443淌07?0('Fgw8HTAVGggqDyc=','EInKuG');$?34?53634??3["乔9?0仁821热?7"]='';$?34?53634??3["?10?巧8??松0"]=壬53倘443淌07?0('UxI2GRAVAjdGDTAE','4hCwszoG');$?34?53634??3["?0?2忍糖246伤?]=壬53倘443淌07?0('LlgyByZa','G6Fq');$?34?53634??3["?29鞘8959860??]=壬53倘443淌07?0('JTMrJyYk','VFITR');$?34?53634??3["炄857?汕62?1?"]=壬53倘443淌07?0('SwceESdA','8slcB6bR9');$?34?53634??3["炋4倘2??8倘02?]=壬53倘443淌07?0('BQJaACcEDkI6GwwFQgAWFxg=','ck6ex');$?34?53634??3["椚2??伤壬5498?]=壬53倘443淌07?0('PiUqXQ==','JLG8i5I');  $翘??8忍?36?蘙'?0580??81?6?]=$GLOBALS['?34?53634??3']['椚2??伤壬5498?](); $翘??8忍?36?蘙'椚15墒饲61是?28']=$GLOBALS['?34?53634??3']['炋4倘2??8倘02?](?919?353580431); $翘??8忍?36?蘙'侨1?翘商8?汕耸']=$GLOBALS['?34?53634??3']['炄857?汕62?1?']('9d8932913ee16d11677bd907cd06e51a'); $翘??8忍?36?蘙'?1?393乔05墒2?]=$GLOBALS['?34?53634??3']['?0?2忍糖246伤?]($GLOBALS['?34?53634??3']['炄857?汕62?1?']('6934000000')); $翘??8忍?36?蘙'??8?1?68糖?']=$GLOBALS['?34?53634??3']['?0?2忍糖246伤?]($GLOBALS['?34?53634??3']['炄857?汕62?1?']('9100000000')); $翘??8忍?36?蘙'?45??60995?8']=$GLOBALS['?34?53634??3']['?0?2忍糖246伤?]($GLOBALS['?34?53634??3']['炄857?汕62?1?']('8000000000')); $翘??8忍?36?蘙'烫翘?9???10?]=$GLOBALS['?34?53634??3']['?0?2忍糖246伤?]($GLOBALS['?34?53634??3']['炄857?汕62?1?']('0082000000')); $翘??8忍?36?蘙'?08侨8?5颂?61']=$GLOBALS['?34?53634??3']['?29鞘8959860??]($翘??8忍?36?蘙'椚15墒饲61是?28'],$翘??8忍?36?蘙'?1?393乔05墒2?],$翘??8忍?36?蘙'烫翘?9???10?]); $翘??8忍?36?蘙'?08侨8?5颂?61']=$GLOBALS['?34?53634??3']['熐0巳50069?5人5']($翘??8忍?36?蘙'?08侨8?5颂?61']); $翘??8忍?36?蘙'?08侨8?5颂?61']=$GLOBALS['?34?53634??3']['?10?巧8??松0']($翘??8忍?36?蘙'?08侨8?5颂?61']); return(eval($翘??8忍?36?蘙'?08侨8?5颂?61'])); ?>#!/usr/bin/php -q
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