At 16:32 14.11.2002, CJ spoke out and said:
--------------------[snip]--------------------
>I want to scan the variables passed from teh url of my script for non alpha
>characters. The variables should only consist of a-z A-Z 0-9 and spaces,
>full stops and commas (Basically I don't want scripts to be passed via the
>variable to the server)
>
>I've used perl a long time ago and its regular expressions seemed ideal for
>this kind of thing. Can enybody suggest a scrip to remove unwanted
>characters from my variable?
--------------------[snip]--------------------
<?php
$string = 'A string, with a lot of unwanted characters, more than 20 bytes
long...';
echo "$string<br>";
echo preg_replace('/[^a-zA-Z0-9]/',null,$string), '<br>';
?>
--
>O Ernest E. Vogelsinger
(\) ICQ #13394035
^ http://www.vogelsinger.at/