PHP function code to detect whether a web page is included in Baidu_PHP tutorial

Usage: Pass in a URL, such as http://jb51.net/article/1.html, and return 1, which means it has been included; return 0, which means Baidu has not included it.

Copy code The code is as follows:

header("Content-type: text/html; charset=utf-8");

function checkBaidu($url) {
$url = 'http://www.baidu.com/s?wd=' . $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['query'], 'http://')) {
$arr['query'] = str_replace('http://', ​​'', str_replace(' wd=', '', $arr['query']));
} else {
  $arr['query'] = str_replace('wd=', '', $arr['query' ]);
}

if (strpos($arr['query'], '?')) {
$str = strstr($arr['query'], '?');
$arr['query '] = str_replace($str, '', $arr['query']);
}

if (strpos($arr['query'], '/')) {
$narr = explode('/', $arr['query']);
$arr['query '] = $narr[0];
}

if (strpos($rs, ''.$arr['query'].'')) {
return 1;
} else {
return 0;
}
}

echo checkBaidu('http://jb51.net/article/1.html');
?>

The above program execution result:

1

http://www.bkjia.com/PHPjc/824858.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/824858.htmlTechArticleUsage: Pass in a URL, such as http://jb51.net/article/1.html, return 1 , means it has been included; returning 0 means Baidu has not included it. Copy the code The code is as follows: ?php header("Con...