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checkdnsrr always returns false


daq

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I searched the forum and found nothing.

 

echo checkdnsrr($ip) ? 'True' : 'False';

 

returns false no matter what $ip is. The function does work correctly when I feed it the name, but ip address consistently fails.

Anyone dealt with this before?

 

Any suggestions other than using exec(host) || exec(nslookup) welcome. :-)

Thank you.

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<?php
$ip = $argv[1];
echo $ip;
echo "\n";
echo checkdnsrr($ip) ? 'True' : 'False';
#echo echo checkdnsrr($ip, 'ANY') ? 'True' : 'False';
echo "\n";
echo gethostbyaddr($ip);
echo "\n"
?>

 

"php ip.php 64.233.167.99" returns:

64.233.167.99
False
py-in-f99.google.com

 

Command that searches for ANY dns record returns false as well.

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