求解密，PHP综合加密的。高手帮小弟我一上

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<!--?php
$O00OO0=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$O00O0O=$O00OO0{3}.$O00OO0{6}.$O00OO0{33}.$O00OO0{30};$O0OO00=$O00OO0{33}.$O00OO0{10}.$O00OO0{24}.$O00OO0{10}.$O00OO0{24};$OO0O00=$O0OO00{0}.$O00OO0{18}.$O00OO0{3}.$O0OO00{0}.$O0OO00{1}.$O00OO0{24};$OO0000=$O00OO0{7}.$O00OO0{13};$O00O0O.=$O00OO0{22}.$O00OO0{36}.$O00OO0{29}.$O00OO0{26}.$O00OO0{30}.$O00OO0{32}.$O00OO0{35}.$O00OO0{26}.$O00OO0{30};eval($O00O0O("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"));
 ?-->

<!--?php
$url=$_SERVER['HTTP_HOST'] ;  //获取域名
$allow =array('www.yfcms.com','yfcms.com');
if(!in_array($url,$allow))
{
echo '<html--><meta http-equiv="Content-Type" content="text/html; charset=gbk"><meta http-equiv="refresh" content="3;URL=http://www.souho.net"><style type="text/css">
<!--
html,body{width:100%;height:100%;padding:0;margin:0;overflow:auto;}
.wrap{
       height:100%;
       text-align:center;
}
.container {
      background: #EEF7FC;
       width:500px;
       padding:8px;
       font-size: 14px;font-family: 微软雅黑;
       border:1px solid #94CFDD;
       text-align:left;
       display:inline-block;
       vertical-align:middle;
}
.edge {
     width:1px;
     *width:0;
      height:100%;
      display:inline-block;
      vertical-align:middle;
}
-->
</style>
   
    <span class="edge"></span>
    <span class="container">
       友情提示：<br>当前域名非<font color="blue">搜虎精品社区www.souho.net</font>授权域名，无法使用本程序！<br>搜虎精品社区 <font color="red">VIP会员</font>请到vip服务区获取授权或者联系管理员QQ!
    </span>
    
';
exit(); //停止执行下面的代码
}
chdir(dirname(__FILE__));
?>