Posted by Janwillem Borleffs on 05/12/07 13:06

Peter Parker wrote:
> I understand for php5 there is function filter_var as in
> filter_var($var, FILTER_SANITIZE_URL);Is there similar function in
> php4.3? Thank you
>

The function implements RFC 1738 validation rules for the
FILTER_SANITIZE_URL flag:

http://www.faqs.org/rfcs/rfc1738.html

There isn't a real equivalent in PHP < 5.2, but you might be able to do some
basic validation using parse_url:

http://www.php.net/parse_url


HTH;
JW

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