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dns_get_record

dns_get_record

Fetch DNS Resource Records associated with a hostname

 **dns_get_record** string $hostname int $type array $authoritative_name_servers array $additional_records bool $raw

Fetch DNS Resource Records associated with the given . hostname

hostname should be a valid DNS hostname such as "". Reverse lookups can be generated using notation, but is more suitable for the majority of reverse lookups. hostname``www.example.com``in-addr.arpa``gethostbyaddr

Opmerking: > Per DNS standards, email addresses are given in format (for example: as opposed to ), be sure to check this value and modify if necessary before using it with a functions such as . user.host``hostmaster.example.com``hostmaster@example.com``mail

type By default, will search for any resource records associated with . To limit the query, use one of the

   constants.
  `dns_get_record``hostname``DNS_*`

authoritative_name_servers Passed by reference and, if given, will be populated with Resource Records for the . Authoritative Name Servers

additional_records Passed by reference and, if given, will be populated with any . Additional Records

raw The will be interpreted as a raw DNS type ID (the constants cannot be used). The return value will contain a key, which needs to be manually parsed. type``DNS_*``data

This function returns an array of associative arrays, return.falseforfailure. Each associative array contains the following keys:

at minimum

**Voorbeeld: Using **

<?php
$result = dns_get_record("php.net");
print_r($result);
?>
Array
(
    [0] => Array
        (
            [host] => php.net
            [type] => MX
            [pri] => 5
            [target] => pair2.php.net
            [class] => IN
            [ttl] => 6765
        )

    [1] => Array
        (
            [host] => php.net
            [type] => A
            [ip] => 64.246.30.37
            [class] => IN
            [ttl] => 8125
        )

)

Voorbeeld: Using and DNS_ANY

 Since it's very common to want the IP address of a mail server
 once the MX record has been resolved, 
 also returns an array in  which
 contains associate records.  
 is returned as well containing a list of authoritative name
 servers.
`dns_get_record``additional_records``authoritative_name_servers`
<?php
/* Request "ANY" record for php.net,
   and create $authns and $addtl arrays
   containing list of name servers and
   any additional records which go with
   them */
$result = dns_get_record("php.net", DNS_ANY, $authns, $addtl);
echo "Result = ";
print_r($result);
echo "Auth NS = ";
print_r($authns);
echo "Additional = ";
print_r($addtl);
?>
Result = Array
(
    [0] => Array
        (
            [host] => php.net
            [type] => MX
            [pri] => 5
            [target] => pair2.php.net
            [class] => IN
            [ttl] => 6765
        )

    [1] => Array
        (
            [host] => php.net
            [type] => A
            [ip] => 64.246.30.37
            [class] => IN
            [ttl] => 8125
        )

)
Auth NS = Array
(
    [0] => Array
        (
            [host] => php.net
            [type] => NS
            [target] => remote1.easydns.com
            [class] => IN
            [ttl] => 10722
        )

    [1] => Array
        (
            [host] => php.net
            [type] => NS
            [target] => remote2.easydns.com
            [class] => IN
            [ttl] => 10722
        )

    [2] => Array
        (
            [host] => php.net
            [type] => NS
            [target] => ns1.easydns.com
            [class] => IN
            [ttl] => 10722
        )

    [3] => Array
        (
            [host] => php.net
            [type] => NS
            [target] => ns2.easydns.com
            [class] => IN
            [ttl] => 10722
        )

)
Additional = Array
(
    [0] => Array
        (
            [host] => pair2.php.net
            [type] => A
            [ip] => 216.92.131.5
            [class] => IN
            [ttl] => 6766
        )

    [1] => Array
        (
            [host] => remote1.easydns.com
            [type] => A
            [ip] => 64.39.29.212
            [class] => IN
            [ttl] => 100384
        )

    [2] => Array
        (
            [host] => remote2.easydns.com
            [type] => A
            [ip] => 212.100.224.80
            [class] => IN
            [ttl] => 81241
        )

    [3] => Array
        (
            [host] => ns1.easydns.com
            [type] => A
            [ip] => 216.220.40.243
            [class] => IN
            [ttl] => 81241
        )

    [4] => Array
        (
            [host] => ns2.easydns.com
            [type] => A
            [ip] => 216.220.40.244
            [class] => IN
            [ttl] => 81241
        )

)

dns_get_mx``dns_check_record