PHP获取百度关键词排名

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@$k=$_GET['k'] ? $_GET['k'] : '不念博客';
@$u=$_GET['u'] ? $_GET['u'] : 'www.bunian.cn';
$rn='50';
$url = "https://www.baidu.com/s?ie=utf-8&wd=".$k."&rn=".$rn;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.1 Safari/537.11');
$res = curl_exec($ch);
$rescode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
preg_match_all('/(.*?)/si', $res, $p);
for ($ii = 0; $ii < COUNT($p[1]); $ii++){
$pos=strpos($p[1][$ii],$u);
if(is_integer($pos)){
$rn= $ii+1;
break;
}
}
echo $rn;

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3. [代码][PHP]代码     跳至                     [1]                         [2]                         [3]     [全屏预览]