Separating the extention from its domain name

Question

I want to work around email addresses and I want to explode them using php's explode function.

It's ok to separate the user from the domain or the host doing like this:

list( $user, $domain ) = explode( '@', $email );

but when trying to explode the domain to domain_name and domain_extention I realised that when exploding them using the "." as the argument it will not always be foo.bar, it can sometimes be foo.ba.ar like fooooo.co.uk

so how to separate "fooooo.co" from "uk" and let the co with the fooooo. so finally I will get the TLD separated from the other part.

I know that co.uk is supposed to be treated as the TLD but it's not official, like fooooo.nat.tn or fooooo.gov.tn

Thank You.

Well, *co.uk* is not a top level domain but a second level domain (*uk* is the top level domain). — Gumbo, Nov 07 '10 at 19:36
that's it as Gumbo said. co.uk is not listed as a TLD as well as com.tn nat.tn .... — medk, Nov 07 '10 at 19:45
But there are lists that contain these second level domains as well (see my answer). — Gumbo, Nov 07 '10 at 19:50

score 2 · Accepted Answer · edited Nov 13 '11 at 17:00

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Just use strripos() to find the last occurrence of ".":

$blah = "hello.co.uk";

$i = strripos($blah, ".");

echo "name = " . substr($blah, 0, $i) . "\n";
echo "TLD = " . substr($blah, $i + 1) . "\n";

edited Nov 13 '11 at 17:00

NullUserException

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answered Nov 07 '10 at 19:32

Oliver Charlesworth

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thank you for your reply mr Oli but could you give me a little example? – medk Nov 07 '10 at 19:40

score 1 · Answer 2 · edited May 23 '17 at 12:29

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Better use imap_rfc822_parse_adrlist or mailparse_rfc822_parse_addresses to parse the email address if available. And for removing the “public suffix” from the domain name, see my answer to Remove domain extension.

edited May 23 '17 at 12:29

Community

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answered Nov 07 '10 at 19:32

Gumbo

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score 1 · Answer 3 · edited Jan 21 '13 at 17:39

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Expanding on Oli's answer...

substr($address, (strripos($address, '.') + 1));

Will give the TLD without the '.'. Lose the +1 and you get the dot, too.

edited Jan 21 '13 at 17:39

xpda

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answered Nov 07 '10 at 20:08

Surreal Dreams

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Ahh, seems Oli expanded his answer. It's better than this, so +1 to Oli. – Surreal Dreams Nov 07 '10 at 20:09

score 0 · Answer 4 · answered Nov 07 '10 at 19:31

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end(explode('.', $email)); will give you the TLD. To get the domain name without that, you can do any number of other string manipulation tricks, such as subtracting off that length.

answered Nov 07 '10 at 19:31

Reese Moore

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thank you sir but this gave me a wrong result: when I used fooooo@ymail.com.tn, this gave me t as the firs result and n as the second result it separated .tn to t n – medk Nov 07 '10 at 19:42

Separating the extention from its domain name

4 Answers4