Re: Re: Help: Validate Domain Name by Regular Express

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On Jan 8, 2011, at 2:22 PM, Al wrote:



On 1/8/2011 3:55 AM, WalkinRaven wrote:
PHP 5.3 PCRE

Regular Express to match domain names format according to RFC 1034 - DOMAIN
NAMES - CONCEPTS AND FACILITIES

/^
(
[a-z] |
[a-z] (?:[a-z]|[0-9]) |
[a-z] (?:[a-z]|[0-9]|\-){1,61} (?:[a-z]|[0-9]) ) # One label

(?:\.(?1))*+ # More labels
\.? # Root domain name
$/iDx

This rule matches only <label> and <label>. but not <label>.<label>...

I don't know what wrong with it.

Thank you.



Look at filter_var()

Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396) ,



I'm wondering what mods to make for this now that unicode chars are allowed in domain names....



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