基于Snoopy的PHP近似完美获取网站编码
用于php爬虫，获取编码准确率99.9%, 还有部分不能获取，求大牛完善
代码来源：
站云网
www.siteyun.com
先要到网上下载Snoopy.class.php
调用方法： echo $go->getCharset();
?>
[code]url=$url;
}
//打开网站
private function open($url)
{
if($this->request!==null)
{
if($this->request->status==200)
{
return true;
}
else
{
return false;
}
}
else
{
$this->request=new Snoopy();
$this->request->fetch($url);
if($this->request->status==200)
{
$this->request->results=strtolower($this->request->results);
$charset=$this->getCharset();
if($charset!="utf-8")
{
if($charset=="windows-1252")
{
$this->request->results=$this->uni_decode($this->request->results);
}
else
{
$this->request->results=mb_convert_encoding($this->request->results,"UTF-8",$charset);
}
}
return true;
}
else
{
return false;
}
}
}
//获取网站title,keywords,description
public function getWebinfo()
{
$info=array(
'title'=>'',
'keywords'=>'',
'desc'=>'',
'ip'=>''
);
if(!$this->open($this->url)){return $info;exit;}
// print_r($this->request->results);exit;
preg_match('/([^>]*)<\/title>/si', $this->request->results, $titlematch );
if (isset($titlematch) && is_array($titlematch) && count($titlematch) > 0)
{
$info['title'] = strip_tags($titlematch[1]);
}
preg_match_all('/<[\s]*meta[\s]*name="?' . '([^>"]*)"?[\s]*' . 'content="?([^>"]*)"?[\s]*[\/]?[\s]*>/si', $this->request->results, $match);
$ft=0;
foreach($match[1] as $mt)
{
if($mt=="keywords" || $mt=="description")
{
$ft=1;
}
}
if($ft==0)
{
preg_match_all('/<[\s]*meta[\s]*content="?([^>"]*)"?[\s]*name="?' . '([^>"]*)"?[\s]*[\/]?[\s]*>/si', $this->request->results, $match);
if (isset($match) && is_array($match) && count($match) == 3)
{
$originals = $match[0];
$names = $match[2];
$values = $match[1];
if (count($originals) == count($names) && count($names) == count($values))
{
$metaTags = array();
for ($i=0, $limiti=count($names); $i < $limiti; $i++)
{
$metaTags[$names[$i]] = array (
'html' => htmlentities($originals[$i]),
'value' => $values[$i]
);
}
}
}
}
else
{
if (isset($match) && is_array($match) && count($match) == 3)
{
$originals = $match[0];
$names = $match[1];
$values = $match[2];
if (count($originals) == count($names) && count($names) == count($values))
{
$metaTags = array();
for ($i=0, $limiti=count($names); $i < $limiti; $i++)
{
$metaTags[$names[$i]] = array (
'html' => htmlentities($originals[$i]),
'value' => $values[$i]
);
}
}
}
}
$result = array (
'metaTags' => $metaTags
);
if(isset($result['metaTags']['keywords']['value']))
{
$info['keywords']=$result['metaTags']['keywords']['value'];
}
else
{
$info['keywords']="";
}
if(isset($result['metaTags']['description']['value']))
{
$info['desc']=$result['metaTags']['description']['value'];
}
else
{
$info['desc']="";
}
$domain=preg_replace('/http\:\/\//si', '', $this->url);
$ip=@gethostbyname($domain);
$ip_arr=explode(".", $ip);
if(count($ip_arr)==4)
{
$info['ip']=$ip;
}
return $info;
}
public function t($string,$o)
{
for($i=0;$i<strlen($string);$i++)
{
if(ord($string{$i})<128)
continue;
if((ord($string{$i})&224)==224)
{
//第一个字节判断通过
$char = $string{++$i};
if((ord($char)&128)==128)
{
//第二个字节判断通过
$char = $string{++$i};
if((ord($char)&128)==128)
{
$encoding = "UTF-8";
break;
}
}
}
if((ord($string{$i})&192)==192)
{
//第一个字节判断通过
$char = $string{++$i};
if((ord($char)&128)==128)
{
//第二个字节判断通过
$encoding = "GB2312";
break;
}
}
}
return strtolower($encoding);
}
function uni_decode ($str, $code = 'utf-8'){
$str = json_decode(preg_replace_callback('/&#(\d{5});/', create_function('$dec', 'return \'\\u\'.dechex($dec[1]);'), '"'.$str.'"'));
if($code != 'utf-8'){ $str = iconv('utf-8', $code, $str); }
return $str;
}
//获取网站编码
public function getCharset()
{
if(!$this->open($this->url)){return false;exit;}
//首先从html获取编码
preg_match("/<meta.+?charset=[^\w]?([-\w]+)/i",$this->request->results,$temp) ? strtolower($temp[1]):"";
if($temp[1]!="")
{
if(in_array($temp[1], $this->charset_arr))
{
if($temp[1]=="gb2312")
{
$tmp_charset=$this->t($this->request->results,$temp[1]);
if($tmp_charset==$temp[1])
{
return $temp[1];
}
}
else
{
return $temp[1];
}
}
}
if(!empty($this->request->headers))
{
//从header中获取编码
$hstr=strtolower(implode("</td></tr></table>
</div>
<div class="">
<ul class="m-news-opt fix">
<li class="opt-item">
<a href='/PHPjiqiao-178816.html' target='_blank'><p>< 上一篇</p><p class="ellipsis">根据汉字取拼音，并附有编码功能</p></a>
</li>
<li class="opt-item ta-r">
<a href='/PHPjiqiao-178818.html' target='_blank'><p>下一篇 ></p><p class="ellipsis">php实现DOS攻击</p></a>
</li>
</ul>
</div>
</div>
</div>
<div class="g-title fix">
<h2 class="title-txt">人气教程排行</h2>
</div>
<div class="m-rank u-dashed mb40">
<ul>
<li class="rank-item">
<a href="/PHPjiqiao-379253.html" title='php如何获取跳转前的url' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num top">1</span>
php如何获取跳转前的url </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-379019.html" title='php格林威治时间转换成当前时间的方法' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num second">2</span>
php格林威治时间转换成当前时间的方法 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-366629.html" title='为什么php不能做大型系统？' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num third">3</span>
为什么php不能做大型系统？ </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-207623.html" title='range函数怎么用' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">4</span>
range函数怎么用 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-162433.html" title='php中计算页面加载时间几种方法总结_PHP教程' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">5</span>
php中计算页面加载时间几种方法总结_PHP教程 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-140221.html" title='求帮助，关于paypal支付返回值修改订单状态' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">6</span>
求帮助，关于paypal支付返回值修改订单状态 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-103588.html" title='typecho怎么配置文章内容页?' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">7</span>
typecho怎么配置文章内容页? </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-99213.html" title='PhpStorm左侧structure不显示文件的方法列表是这么回事？' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">8</span>
PhpStorm左侧structure不显示文件的方法列表是这么回事？ </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-92208.html" title='查看PHP的环境变量_PHP' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">9</span>
查看PHP的环境变量_PHP </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-170.html" title='PHP Primary script unknown 解决方法总结' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">10</span>
PHP Primary script unknown 解决方法总结 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-148.html" title='php的命名空间与自动加载实现方法' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">11</span>
php的命名空间与自动加载实现方法 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-133.html" title='解决laravel 出现ajax请求419(unknown status)的问题' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">174次</span>
<span class="g-sort-num ">12</span>
解决laravel 出现ajax请求419(unknown status)的问题 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-462817.html" title='php 如何删除mysql记录' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">13</span>
php 如何删除mysql记录 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-388448.html" title='PHP如何替换数组中的指定元素' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">14</span>
PHP如何替换数组中的指定元素 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-124270.html" title='怎么去除字符串中非汉字、非字母、非数字的字符' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">15</span>
怎么去除字符串中非汉字、非字母、非数字的字符 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-112291.html" title='mysql如何一次执行多条SQL语句' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">16</span>
mysql如何一次执行多条SQL语句 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-110669.html" title='修改header里面的Connection为close解决方法' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">17</span>
修改header里面的Connection为close解决方法 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-153.html" title='PHP基于session.upload_progress 实现文件上传进度显示功能详解' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">18</span>
PHP基于session.upload_progress 实现文件上传进度显示功能详解 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-125.html" title='php5.6.x到php7.0.x特性小结' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">173次</span>
<span class="g-sort-num ">19</span>
php5.6.x到php7.0.x特性小结 </a>
</li> <li class="rank-item">
<a href="/PHPjiqiao-378118.html" title='php为什么会出现504错误' class="item-name ellipsis" target="_blank">
<span class="g-art-count fr">172次</span>
<span class="g-sort-num ">20</span>
php为什么会出现504错误 </a>
</li>
</ul>
</div>
</div>
</div>
<!-- / 教程内容页 -->
</div>
</div>
<!-- 页尾 -->
<div class="footer">
本站所有资源全部来源于网络，若本站发布的内容侵害到您的隐私或者利益，请联系我们删除！</div>
<!-- / 页尾 -->
<script type="text/javascript" src="/kan/js/read.js"></script>
<div style="display:none">
<div class="login-box" id="login-dialog">
<div class="login-top"><a class="current" rel="nofollow" id="login1" onclick="setTab('login',1,2);" >登录</a></div>
<div class="login-form" id="nav-signin">
<!-- <div class="login-ico"><a rel="nofollow" class="qq" id="qqlogin" target="_blank" href="/user-center-qqlogin.html"> QQ </a></div> -->
<div class="login-box-form" id="con_login_1">
<form id="loginform" action="/user-center-login.html" method="post" onsubmit="return false;">
<p class="int-text">
<input class="email" id="username" name="username" type="text" value="用户名或Email" onfocus="if(this.value=='用户名或Email'){this.value='';}" onblur="if(this.value==''){this.value='用户名或Email';};" ></p>
<p class="int-text">
<input class="password1" type="password" id="password" name="password" value="******" onBlur="if(this.value=='') this.value='******';" onFocus="if(this.value=='******') this.value='';" >
</p>
<p class="int-info">
<label class="ui-label"> </label>
<label for="agreement" class="ui-label-checkbox">
<input type="checkbox" value="" name="cookietime" id="cookietime" checked="checked" value="2592000">
<input type="hidden" name="notforward" id="notforward" value="1">
<input type="hidden" name="dosubmit" id="dosubmit" value="1">记住我的登录 </label>
<a rel="nofollow" class="aright" href="/user-center-forgetpwd.html" target="_blank"> 忘记密码？ </a></p>
<p class="int-btn"><a rel="nofollow" id="loginbt" class="loginbtn"><span>登录</span></a></p>
</form>
</div>
<form id="regform" action="/user-center-reg.html" method="post">
<div class="login-reg" style="display: none;" id="con_login_2">
<input type="hidden" name="t" id="t"/>
<p class="int-text">
<input id="email" name="email" type="text" value="Email" onfocus="if(this.value=='Email'){this.value='';}" onblur="if(this.value==''){this.value='Email';};"></p>
<p class="int-text">
<input id="uname" name="username" type="text" value="用户名或昵称" onfocus="if(this.value=='用户名或昵称'){this.value='';}" onblur="if(this.value==''){this.value='用户名或昵称';};"></p>
<p class="int-text">
<input type="password" id="pwd" name="password" value="******" onBlur="if(this.value=='') this.value='******';" onFocus="if(this.value=='******') this.value='';"> </p>
<p class="int-text1"><span class="inputbox">
<input id="validate" name="validate" type="text" value="验证码" onfocus="if(this.value=='验证码'){this.value='';}" onblur="if(this.value==''){this.value='验证码';};">
</span><span class="yzm-img"><img src="/user-checkcode-index" alt="看不清楚换一张" id="indexlogin"></p>
<p class="int-info">
<label>
<input value="" name="agreement" id="agreement" CHECKED="checked" type="checkbox">
我已阅读<a rel="nofollow" href="/user-center-agreement.html">用户协议</a>及<a rel="nofollow" href="/user-center-agreement.html">版权声明</a></label>
</p>
<p class="int-btn"><input type="hidden" name="dosubmit"/>
<a rel="nofollow" class="loginbtn" id="register"><span>注册</span></a></p>
</div>
</form>
</div>
</div>
</div>
</div>
<script type="text/javascript" src="/kan/js/foot_js.js"></script>
<script>
var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?6dc1c3c5281cf70f49bc0bc860ec24f2";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();
</script>
<script type="text/javascript" src="/layui/layui.js"></script>
<script>
layui.use('code', function() {
layui.code({
elem: 'pre', //默认值为.layui-code
about: false,
skin: 'notepad',
title: 'php怎么实现数据库验证跳转代码块',
encode: true //是否转义html标签。默认不开启
});
});
</script>
</body>
</html> |
