Tijnema wrote:
> On 6/7/07, Brad Fuller <bfuller@xxxxxxxxxxxxxxxx> wrote:
>> Robin Vickery wrote:
>>> In that case you can't do it just by parsing alone, you need to use
>>> DNS.
>>>
>>> <?php
>>> function get_domain ($hostname) {
>>> dns_get_record($hostname, DNS_A, $authns, $addt); return
>>> $authns[0]['host']; }
>>>
>>> print get_domain("www.google.com") . "\n"; print
>>> get_domain("google.com") . "\n"; print
>>> get_domain("www.google.co.uk") . "\n"; print
>>> get_domain("google.co.uk") . "\n"; print
>>> get_domain("google.co.uk") . "\n"; print
>>> get_domain("google.com.au") . "\n"; print
>>> get_domain("www.google.com.au") . "\n";
>>>
>>> /* result
>>> google.com
>>> google.com
>>> google.co.uk
>>> google.co.uk
>>> google.co.uk
>>> google.com.au
>>> google.com.au
>>> */
>>>>
>>
>>
>> Robin,
>>
>> This is a very good solution, and I thank you for your response.
>> However I had been experimenting with dns_get_record() before my
>> original post and it produces strange results on my machine. And
>> your example, on my machine, produces no output.
>>
>> <?
>> $dns_result = dns_get_record("www.google.com", DNS_A, $authns,
>> $addt);
>>
>> print_r($dns_result);
>> print_r($authns);
>> print_r($addt);
>>
>> /* result
>> Array
>> (
>> [0] => Array
>> (
>> [host] => www.l.google.com
>> [type] => A
>> [ip] => 64.233.161.99
>> [class] => IN
>> [ttl] => 136
>> )
>>
>> [snip]
>> )
>> Array
>> (
>> )
>> Array
>> (
>> )
>> */
>>
>>>
>>
>> Any suggestions??
>>
>>
>> Thanks,
>> Brad
>
> I have same results as you brad,
> I have Apache 2.2.3 + PHP 5.2.3RC1, so if you finally get it
> working, it's definitely not portable code :P Maybe it's an
> option to talk to a whois server?
>
> Tijnema
Actually I need to get the root domain from the URL as a previous step to a
WHOIS query. You can't do a WHOIS on "www.example.com". It has to be
"example.com" only.
dig www.example.com doesn't always give the information I need either.
I think DNS is the way to go, but need to figure out why dns_get_record()
returns an empty "authns" array for some of us but works properly for Robin
and for the example in the manual. I haven't found anything yet, but I'll
keep searching.
Thanks,
Brad
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