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Mail_RFC822::_validateSubdomain ( subdomain )

Function to validate a subdomain: subdomain = domain-ref / domain-literal

private

Parameters:
string$subdomainThe string to check.
Returns:
boolean Success or failure.

Definition at line 794 of file z_RFC822.php.

References _validateAtom(), and _validateDliteral().

Referenced by _validateDomain().

    {
        if (preg_match('|^\[(.*)]$|', $subdomain, $arr)){
            if (!$this->_validateDliteral($arr[1])) return false;
        } else {
            if (!$this->_validateAtom($subdomain)) return false;
        }

        // Got here, so return successful.
        return true;
    }

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