Re: Security issues

memoimyself@yahoo.com.br wrote:

Hi Chris, First of all, thanks a lot for sharing your "modus operandi" with us. On 14 Jan 2004 at 7:32, Chris W wrote:

I then verify that every character in the string is with in the ascii range of a space to the ~ which is basically all the characters on the key board.

How exactly are you performing this check? Regular expression matching? If so, what regular expression are you using?

function validStr($s, $len) { if(strlen($s) > $len){

    return false;

} for($i = 0;$i < strlen($S);$i++){

    if($s[$i] < ' ' or $s[$i] > '~'){
      return false;
    }

} return true; }