Hi,
Tuesday, December 3, 2002, 12:12:09 PM, you wrote:
BG> Okay, I've just solved my own problem by simply doing:
BG> settype($input,"integer");
BG> but.. I'm puzzled about why the following more complicated solution
BG> didn't work. The ASCII value for 0 is 48, and for 9 is 57.
BG> The idea was to read a character at a time from the $rawinput string,
BG> check if it's within the correct range, and if so concantenate it to the
BG> end of the output string.
BG> However bizarrely this seems to behave incorrectly, as it cuts out "0"
BG> as well. Can anyone explain why it does this?
BG> function stripnum($rawinput)
BG> {
BG> for($x=0;$x < strlen($rawinput);$x++)
BG> {
BG> $c = substr($rawinput,$x,1);
BG> switch($c){
BG> case ($c > chr(47) and $c < chr(58)):
BG> $output .=$c;
BG> break;
BG> default:
BG> echo "escaped character at ".$x;
BG> break;
BG> }
BG> }
BG> return $output;
BG> }
BG> I just can't find the bug in my code at all, and even though I found a
BG> better way to do it, it's annoying me that this didn't work!!!
BG> Beth Gore
BG> --
BG> http://bethanoia.dyndns.org/
BG> rss feed: http://bethanoia.dyndns.org/bethanoia.rss
switch will treat 0 as false which ever way you try to dress it up :)
I solved a similar problem like this:
switch($c){
case (ord($c) > 47 && ord($c) < 58)?True:False:
$output .=$c;
break;
default:
echo "escaped character at ".$x;
break;
}
--
regards,
Tom
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