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PHP's
gethostbyname()
function doesn't seem to be configurable as far as timeouts are concerned. I want to limit DNS requests to 1 second or less as anymore shows a problem and should be ignored.
So, is there a way to make a DNS query using sockets or cURL instead? I was able to make SMTP requests using PHP streams which saved server resources, so I'm looking to do the same with DNS queries.
function getAddrByHost($host, $timeout = 3) {
$query = `nslookup -timeout=$timeout -retry=1 $host`;
if(preg_match('/\nAddress: (.*)\n/', $query, $matches))
return trim($matches[1]);
return $host;
http://www.php.net/manual/en/function.gethostbyname.php#92870
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