[ILUG] converting strings of hex to ascii

[John P. Looney]

On Mon, Aug 26, 2002 at 11:56:29AM +0100, Paul Jakma mentioned:
> can anyone think of an easy way to convert strings that describe 
> ASCII chars in hex to plain ASCII?
> 
> eg given 
> 
> 	http://w%77%77%2Eo%70%74%6F%72%69um.n%65t/remove.html
> 
> is there an easy way to turn it into
> 
> 	http://www.optorium.net/remove.html
> 
> ?
> 
> eg, whether by piping through some already available tool, or 
> programmatically (printf? - but i dont see how.).
> 
> want to avoid ascii lookup tables..

#  cat test.php 
<?
  echo urldecode($argv[1]) . "\n";
?>
# php -q ./test.php http://w%77%77%2Eo%70%74%6F%72%69um.n%65t/remove.html
http://www.optorium.net/remove.html

Kate