Description:
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ereg does not seam to work with \x values.
it can only matches uppercase !! but \x21-\x7a
includes all upper and lower case characters.

for some reasons i must use ereg and NOT eregi.

preg_match does work! but it does not work with utf-8

Reproduce code:
---------------
$URLS = array(1 => 'FOUND',
              2 => 'notfound');


$pattern = '[\x21-\x7a]+';

foreach ($URLS as $key => $url) {
  print $url;
  if (ereg($pattern, $url)) print " ............ OK\n";
  else print " .............. FAILED\n";
}



Expected result:
----------------
FOUND ............ OK 
notfound .............. OK

Actual result:
--------------
FOUND ............ OK 
notfound .............. FAILED