checkdnsrr()返回错误信息

时间:2013-03-04 05:53:10

标签: php dns

$dname = "accurst.com";
$recordexists = checkdnsrr($dname, "ANY");

if ($recordexists) 
  echo $dname." is taken. Sorry!<br>";
else 
  echo $dname." is available!<br>";

这是一个返回错误信息的示例域。它说它可用但是 该域名是2800美元的高级域名 是否有任何方式可以证明它不可用,因为它没有解开任何人? 换句话说,如果我抬头:accurstttt.com现在已经可以使用了 而accurst.com应该说:不可用 我尝试了不同的其他域名,它一直显示它们是高级时可用。任何输入都会非常有用,谢谢

2 个答案:

答案 0 :(得分:2)

<?php

function checkDomainAvailability($domain_name){

$server = 'whois.crsnic.net';

// Open a socket connection to the whois server
$connection = fsockopen($server, 43);
if (!$connection) return false;

// Send the requested doman name
fputs($connection, $domain_name."\r\n");

// Read and store the server response
$response_text = ' :';
while(!feof($connection)) {
$response_text .= fgets($connection,128);
}

// Close the connection
fclose($connection);

// Check the response stream whether the domain is available
if (strpos($response_text, 'No match for')) return true;
else return false;
}


$domainname = 'accurst.com';

if(checkDomainAvailability($domainname)) echo 'Domain : '.$domainname.' is Available';
else echo 'Domain : '.$domainname.' is Already Taken';

?>

答案 1 :(得分:1)

不幸的是功能:

returns FALSE if no records were found or if an error occurred.

所以“没有结果”并不意味着任何决定性因素。

我还会查找A和CNAME记录,例如:

$dname = "accurst.com";
echo checkdnsrr($dname, "A");

打印1