PHP获取搜索引擎来路以及搜索关键字的方法

<p><?php</p>
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                        <a class="aritcle_card_img" href="/ai/1385">
                            <img src="https://img.php.cn/upload/ai_manual/000/000/000/175680265595886.png" alt="纳米搜索">
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                            <a href="/ai/1385">纳米搜索</a>
                            <p>纳米搜索：360推出的新一代AI搜索引擎</p>
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                                <img src="/static/images/card_xiazai.png" alt="纳米搜索">
                                <span>30</span>
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                            <span>查看详情</span>
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                function recordUrlKeywords($url){<br /> $spider=array('baidu.'=>'百度','google.'=>'谷歌','soso.'=>'搜搜','sogou.'=>'搜狗','www.so.com'=>'360');<br /> $q=array('百度'=>'/wd=([^&]*)/i','谷歌'=>'/q=([^&]*)/i','360'=>'/q=(.*)/i','搜狗'=>'/query=([^&]*)/i','搜搜'=>'/w=([^&]*)/i');<br /> //author:www.phpernote.com<br /> foreach($spider as $k=>$v){<br /> if(strpos($url,$k)){<br /> preg_match("{$q[$v]}",$url,$b);<br /> if($v=='搜搜'||$v=='搜狗'){<br /> $keywords=iconv('GBK','UTF-8',urldecode($b[1]));<br /> }else{<br /> $keywords=urldecode($b[1]);<br /> }<br /> echo "来自{$v}的关键字:".$keywords;<br /> }<br /> }<br />}<br />$url=$_SERVER['HTTP_REFERER'];//获取网站来源地址<br />recordUrlKeywords($url);