php爬取百度相关关键词,PHP获取百度关键词排行接口源码

// 关键词

@$k=$_GET['k'] ? $_GET['k'] : '杨小杰博客';

// 域名0

@$u=$_GET['u'] ? $_GET['u'] : 'www.youngxj.cn';

// 百度搜索默认参数

$rn='50';

// 百度查询地址

$url = "https://www.baidu.com/s?ie=utf-8&wd=".$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);

// 循环判断是否有域名关键词

if(is_integer($pos)){

$rn= $ii+1;

break;

}

}

// 输出json格式

echo json_encode(array('code'=>'200','url'=>$u,'keyword'=>$k,'rank'=>$rn));

?>

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