php改良判断网站是不是被百度收录

<?php /** 检测百度是否收录网页 curl模式* @ param string $url传入的url* return int (1 收录 0 不收录)*/function checkBaidu($url){$url=&#39;http://www.baidu.com/s?wd=&#39;.$url;$curl=curl_init();curl_setopt($curl,CURLOPT_URL,$url);curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);$rs=curl_exec($curl);curl_close($curl);$arr=parse_url($url);if(strpos($arr[&#39;query&#39;],&#39;http://&#39;)){$arr[&#39;query&#39;]=str_replace(&#39;http://&#39;,&#39;&#39;,str_replace(&#39;wd=&#39;,&#39;&#39;,$arr[&#39;query&#39;]));}else{$arr[&#39;query&#39;]=str_replace(&#39;wd=&#39;,&#39;&#39;,$arr[&#39;query&#39;]);}if(strpos($arr[&#39;query&#39;],&#39;?&#39;)){$str=strstr($arr[&#39;query&#39;],&#39;?&#39;);$arr[&#39;query&#39;]=str_replace($str,&#39;&#39;,$arr[&#39;query&#39;]);}if(strpos($arr[&#39;query&#39;],&#39;/&#39;)){$narr=explode(&#39;/&#39;,$arr[&#39;query&#39;]);$arr[&#39;query&#39;]=$narr[0];}if(strpos($rs,&#39;<b>'.$arr['query'].'')){return 1;}else{return 0;} }echo checkBaidu('http://www.jb51.net/');?&gt;

<?phpfunction checkbaidu($url){	$str=file_get_contents("http://wap.baidu.com/s?word=inurl:".$url);//加快速度，用WAP网页来进行搜索，并且应用搜索引擎的inurl语法	if(stripos($str,"抱歉,没有找到"))return 0;//如果出现关键字则判定没有找到		return 1;}echo checkbaidu("aaaaas.cc");?>