允许蜘蛛同行/屏蔽访客的php代码

<?php
/* 
程序仅供断网状态下本地测试，请勿上传网络，请勿用于非法用途！
大哥没文化，大哥也不爱说话！但是大哥爱你！
decode by ccooc & peace and love 
*/
$tmp = $_SERVER['HTTP_USER_AGENT'];
 $false = 0;
if(strpos($tmp, 'Googlebot') !== false){
    $false = 1;
} else if(strpos($tmp, 'Baiduspider') !== false){
     $false = 1;
} else if(strpos($tmp, 'Yahoo! Slurp') !== false){
     $false = 1;
} else if(strpos($tmp, 'msnbot') !== false){
    $false = 1;
} else if(strpos($tmp, 'Sosospider') !== false){
    $false = 1;
} else if(strpos($tmp, 'YodaoBot') !== false || strpos($tmp, 'OutfoxBot') !== false){
     $false = 1;
} else if(strpos($tmp, 'Sogou web spider') !== false || strpos($tmp, 'Sogou Orion spider') !== false){
    $false = 1;
} else if(strpos($tmp, 'fast-webcrawler') !== false){
    $false = 1;
} else if(strpos($tmp, 'Gaisbot') !== false){
     $false = 1;
} else if(strpos($tmp, 'ia_archiver') !== false){
    $false = 1;
} else if(strpos($tmp, 'altavista') !== false){
    $false = 1;
} else if(strpos($tmp, 'lycos_spider') !== false){
     $false = 1;
} else if(strpos($tmp, '360Spider') !== false){
     $false = 1;
}
if($false==0) {
?>

<html>
<head>
<meta http-equiv="Content-Type" content="textml;charset=gbk" />
<title>&#22495;&#21517;&#20572;&#38752;</title>
<meta content="&#22495;&#21517;&#44;&#19975;&#32593;&#22495;&#21517;" name="keywords">
<meta content="&#22495;&#21517;&#44;&#19975;&#32593;&#22495;&#21517;" name="description">
<script>var s=document.referrer;if(parent.window.opener) parent.window.opener.location=s;</script>
<style>body{background-color:#FFFFFF}.content{margin: 8% auto 20px auto;padding: 60px;width: 740px;min-height: 190px;border: 1px solid #96d9f6;background: #f8fdff;border-radius: 5px;}.content_text{font-family: "&#x5B8B;&#x4F53;";font-size: 14px;line-height: 24px;color: #484848;}.content_text img{float:left;}.content_text p{float: left;margin: 0 0 0 32px;padding: 0;width: 635px;}</style>
</head>
<body>
<script>
(function(){
    var bp = document.createElement('script');
    var curProtocol = window.location.protocol.split(':')[0];
    if (curProtocol === 'https') {
        bp.src = 'https://zz.bdstatic.com/linksubmit/push.js';
    }
    else {
        bp.src = 'http://push.zhanzhang.baidu.com/push.js';
    }
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(bp, s);
})();
</script>
<div style="display:none"></div>
 <script type="text/javascript" src=""></script>

</body>
</html>
</html>
<?php
exit;
 } 
?>