On Sat, 22 Mar 2003 09:34:03 -0500, you wrote:

>When validating user input to remove quotes and other characters that 
>can be used for hacks, does one need to be concerned about the high-
>ASCII characters which have 'quote' meanings (e.g. 0x91 - 0x94).  I 
>presume not, but just wanted to verify that PHP will not interpret 
>these as quotes.

You should probably look at this function:

http://www.php.net/manual/en/function.htmlentities.php

The thing that is most likely to trip you up is people who cut'n'paste
from Word. High-ASCII characters can slip in like that, also some
characters that are common in European languages (accents and umlauts).
All of these need to be translated into HTML entities.

(ISTR there are a few additional characters you should add to the
translation table if you're doing WML, too.)


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