PHP implementation of querying Baidu and Google inclusion status (sample code)_PHP tutorial

function baidudetail($domain) {
$baidu_site = 'http://www.baidu.com/baidu?word=site%3A' . $domain;
$baidu_link = 'http:// www.baidu.com/baidu?word=link%3A' . $domain;
$baidu_domain = 'http://www.baidu.com/baidu?word=domain%3A' . $domain;
getdetail($baidu_site, 'baidu_site', 'Related web pages', 'Articles, time spent');
getdetail($baidu_link, 'baidu_link', 'Related web pages', 'Articles, time spent');
getdetail( $baidu_domain, 'baidu_domain', 'related web pages', 'article, time');
}

function googledetail($domain) {
$google_site = 'http://www.google.cn/search?hl=zh-CN&q=site%3A' . $domain;
$google_link = ' http://www.google.cn/search?hl=zh-CN&q=link%3A' . $domain;
getdetail($google_site, 'google_site', ' results,', ' (Search time');
getdetail($google_link, 'google_link', 'about', ' link to '); //102
}

function getdetail($url, $type, $wordf, $wordb) {
$pagecontent = @file($url);
$pagecontent = implode ('', $pagecontent);
$pagecontent = substr(strstr($pagecontent, $wordf), strlen($wordf));
$pagecontent = substr_replace($pagecontent, '', strpos($pagecontent, $wordb));
returndetail( $pagecontent, $type);
}