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PHP Regex: Validate Domain Name

$domains = Array(
			'http://www.domain.com',
			'http://sub.domain.com',
			'http://domain.com',
			'http://www.do-main.com',
			'http://www.domain123.com',
			'http://123.domain.net',
			'http://www.domain.org',
			'http://www.domain.us',
			'http://www.domain.web.id',
			'http://www.domain.co.cc',
			'http://www.domain.co.tv',
			'http://www.domain.info',
			'http://www.domain.tv',
			'http://www.domain.asia',
			'https://domain.com'
			);

foreach($domains as $domain) {
if(!preg_match('/^[http?s:\/\/\.]+[0-9a-z-\.]+\.+[0-9a-z\.]+$/i',$domain)) {
		$msg = '<span style="color:red">bukan domain valid</span>';
		echo $domain . ' => ' . $msg.'<br />';
}
else {
		$msg = '<span style="color:green">domain valid</span>';
		echo $domain . ' => ' . $msg.'<br />';
}
}

php syntax, submitted by: takien at 2010-06-09 02:32:36

This is a sample of REGEX usage to validate domain name format. It will not strictly validate valid TLD, you need to list all TLD's to do that.

Tags: php, regex,