WHOIS Domain availability Search

Question

我遇到以下域检查功能，我似乎无法使其工作。

function domain_checker($domain){ 

$extension = explode(".",$domainname); 
$extension = $extension[1]; 
switch($extension) 
{ 
    case "com": $server = "whois.verisign-grs.com"; break; 
    case "net": $server = "whois.verisign-grs.com"; break; 
    case "org": $server = "whois.pir.org"; break; 
    case "info": $server = "whois.afilias.net"; break; 
    case "biz": $server = "whois.biz"; break; 
    case "name": $server = "whois.nic.name"; break; 
    default: return "Given Extension not supported"; exit(); 
} 
// connecting to the whois server. 
$handle = fsockopen($server, 43); 
if (!$handle) 
    return false; // connectin failure 

//asking the server 
fwrite($handle, $domainname."\r\n"); 

// getting response 
$response = ''; 
while (!feof($handle)) 
    $response .= fgets($handle, 1024); 

fclose($handle); 
//checking if domain is available or not 
if($extension=="com" || $extension=="net" || $extension=="name") 
{ 
    if(stripos($response, 'No match') === FALSE) 
     return $domainname." is not Available!"; 
    else 
     return $domainname. " is Available!"; 
} 
else 
{ 
    if(stripos($response, "NOT FOUND") === FALSE) 
     return $domainname. " is not Available!"; 
    else 
     return $domainname. " is Available!"; 
}  

}

我不断收到以下错误：

Warning: fsockopen() [function.fsockopen]: unable to connect to whois.verisign-grs.com:43

帮助赞赏！

Answer 1

As @phpdev写道：从错误消息，很明显whois.verisign-grs.com不接受端口43上的连接。您可能必须找到另一个whois服务器来传递您的请求。

我就找到了解决威瑞信：

http://www.verisigninc.com/cgi-bin/whois?type=domain&eswhois_nic=google.com&whois_tld=com 

参数：eswhois_nic是域名，whois_tld要么是COM或净，基于域 然后只是get请求与卷曲或file_get_contents和voila;）

Answer 2

我可以验证kristian发布的链接的作品。你只需要先设置你的COOKIE。现在它的主站点上有一个验证码。

你必须让你的用户填写验证码并存储cookie的结果。

http://www.verisigninc.com/en_US/products-and-services/domain-name-services/whois/index.xhtml