Remove domain extension

Question

So let\'s say I have just-a.domain.com,just-a-domain.info,just.a-domain.net how can I remove the extension .com,.net.info ... and I need the result

Answer 1

$subject = 'just-a.domain.com';
$result = preg_split('/(?=\.[^.]+$)/', $subject);

This produces the following array

$result[0] == 'just-a.domain';
$result[1] == '.com';