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[code]<?php
$domain="www.naum.kr";
preg_match('/[^\.]+\.([^\.]{4}|[^\.]{3}|(co|or|pe|ac)\.[^\.]{2}|[^\.]{2})$/i', $domain, $matches);
print_r($matches);
?>[/code]결과 : Array ( [0] => naum.kr [1] => kr )
[code]<?php
$domain = "http://aaa.www.domain.net";
$pattern = "/[a-z]+\.([a-z]|co\.kr)+$/si";
preg_match($pattern, $domain, $match);
?>[/code]결과 : $match[0] : domain.net
$domain="www.naum.kr";
preg_match('/[^\.]+\.([^\.]{4}|[^\.]{3}|(co|or|pe|ac)\.[^\.]{2}|[^\.]{2})$/i', $domain, $matches);
print_r($matches);
?>[/code]결과 : Array ( [0] => naum.kr [1] => kr )
[code]<?php
$domain = "http://aaa.www.domain.net";
$pattern = "/[a-z]+\.([a-z]|co\.kr)+$/si";
preg_match($pattern, $domain, $match);
?>[/code]결과 : $match[0] : domain.net
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