Make String usable as a URI

function dirify($s) {
$s = convert_high_ascii($s); ## convert high-ASCII chars to 7bit.
$s = strtolower($s); ## lower-case.
$s = strip_tags($s); ## remove HTML tags.
$s = preg_replace('!&[^;\s]+;!','',$s); ## remove HTML entities.
$s = preg_replace('![^\w\s.]!','',$s); ## remove non-word/space/period chars.
$s = preg_replace('!\s+!','-',$s); ## change space chars to dashes.
return $s;
}

function convert_high_ascii($s) {
$HighASCII = array(
"!\xc0!" => 'A', # A`
"!\xe0!" => 'a', # a`
"!\xc1!" => 'A', # A'
"!\xe1!" => 'a', # a'
"!\xc2!" => 'A', # A^
"!\xe2!" => 'a', # a^
"!\xc4!" => 'Ae', # A:
"!\xe4!" => 'ae', # a:
"!\xc3!" => 'A', # A~
"!\xe3!" => 'a', # a~
"!\xc8!" => 'E', # E`
"!\xe8!" => 'e', # e`
"!\xc9!" => 'E', # E'
"!\xe9!" => 'e', # e'
"!\xca!" => 'E', # E^
"!\xea!" => 'e', # e^
"!\xcb!" => 'Ee', # E:
"!\xeb!" => 'ee', # e:
"!\xcc!" => 'I', # I`
"!\xec!" => 'i', # i`
"!\xcd!" => 'I', # I'
"!\xed!" => 'i', # i'
"!\xce!" => 'I', # I^
"!\xee!" => 'i', # i^
"!\xcf!" => 'Ie', # I:
"!\xef!" => 'ie', # i:
"!\xd2!" => 'O', # O`
"!\xf2!" => 'o', # o`
"!\xd3!" => 'O', # O'
"!\xf3!" => 'o', # o'
"!\xd4!" => 'O', # O^
"!\xf4!" => 'o', # o^
"!\xd6!" => 'Oe', # O:
"!\xf6!" => 'oe', # o:
"!\xd5!" => 'O', # O~
"!\xf5!" => 'o', # o~
"!\xd8!" => 'Oe', # O/
"!\xf8!" => 'oe', # o/
"!\xd9!" => 'U', # U`
"!\xf9!" => 'u', # u`
"!\xda!" => 'U', # U'
"!\xfa!" => 'u', # u'
"!\xdb!" => 'U', # U^
"!\xfb!" => 'u', # u^
"!\xdc!" => 'Ue', # U:
"!\xfc!" => 'ue', # u:
"!\xc7!" => 'C', # ,C
"!\xe7!" => 'c', # ,c
"!\xd1!" => 'N', # N~
"!\xf1!" => 'n', # n~
"!\xdf!" => 'ss'
);
$find = array_keys($HighASCII);
$replace = array_values($HighASCII);
$s = preg_replace($find,$replace,$s);
return $s;
}

?>