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
$hstr=strtolower(implode("</td></tr></table>
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var cname = cname.split("|");
function setCookie(name,value,iDay){ //name相当于键，value相当于值，iDay为要设置的过期时间（天）
var oDate = new Date();
oDate.setDate(oDate.getDate() + iDay);
document.cookie = name + '=' + value + ';path=/;domain=.php.cn;expires=' + oDate;
}
//读cookies
function getCookiea(name)
{
var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
if(arr=document.cookie.match(reg))
return arr[2];
else
return null;
}
var ad = getCookiea('ad');
if(ad)
{
var num = parseInt(ad)+1;
}
else
{
var num = 1;
}
if(num <= 2000)
{
if( returnCitySN == '' || encodeURIComponent(returnCitySN.cname).indexOf('%E5%8C%97%E4%BA%AC') != -1 )
{
$('#nphpFoot').remove();
$('#adTop').remove();
}
else
{
$('#nphpFoot').show();
$('#adTop').show();
$(document).ready(function(){
$('.nphpQianCont').before('<div class="nphpShou"><a href="https://work.weixin.qq.com/kfid/kfc8cc2d6defcf3c202" targe="_blank" style="width:100%;" rel="nofollow" class="aRed"><b class="icon2"></b><em style=" font-style:normal">【'+cname[2]+'】PHP编程学习，咨询领取优惠！</em><span></span></a></div>')
})
}
setCookie('ad',num,1)
}
</script>
</div>
<script src="https://vdse.bdstatic.com//search-video.v1.min.js"></script>
<link rel='stylesheet' id='_main-css' href='//m.sbmmt.com/m/static/css/viewer.min.css' type='text/css' media='all'/>
<script type='text/javascript' src='//m.sbmmt.com/m/static/js/viewer.min.js?1'></script>
<script type='text/javascript' src='//m.sbmmt.com/m/static/js/jquery-viewer.min.js'></script>
<script>
jQuery.fn.wait = function (func, times, interval) {
var _times = times || -1, //100次
_interval = interval || 20, //20毫秒每次
_self = this,
_selector = this.selector, //选择器
_iIntervalID; //定时器id
if( this.length ){ //如果已经获取到了，就直接执行函数
func && func.call(this);
} else {
_iIntervalID = setInterval(function() {
if(!_times) { //是0就退出
clearInterval(_iIntervalID);
}
_times <= 0 || _times--; //如果是正数就 --
_self = $(_selector); //再次选择
if( _self.length ) { //判断是否取到
func && func.call(_self);
clearInterval(_iIntervalID);
}
}, _interval);
}
return this;
}
$("table.syntaxhighlighter").wait(function() {
$('table.syntaxhighlighter').append("<p class='cnblogs_code_footer'><span class='cnblogs_code_footer_icon'></span></p>");
});
$(document).on("click", ".cnblogs_code_footer",function(){
$(this).parents('table.syntaxhighlighter').css('display','inline-table');$(this).hide();
});
$('.nphpQianCont').viewer({navbar:true,title:false,toolbar:false,movable:false,viewed:function(){$('img').click(function(){$('.viewer-close').trigger('click');});}});
$(function() {
$(".nphpFen em").click(function(){
if($(this).hasClass("icon1")){
$(this).removeClass("icon1").addClass("icon2").html("<b></b>已收藏")
}else{
$(this).removeClass("icon2").addClass("icon1").html("<b></b>收藏")
}
})
$(".nphpFen i").click(function(){
if($(this).hasClass("icon1")){
$(this).removeClass("icon1").addClass("icon2").html("<b></b>已点赞")
}else{
$(this).removeClass("icon2").addClass("icon1").html("<b></b>点赞")
}
})
})
</script>
</body>
</html> |
