Make string usable as a URI
This function will turn any string into a safe string usable in a URI.
1 function dirify($s) { 2 $s = convert_high_ascii($s); ## convert high-ASCII chars to 7bit. 3 $s = strtolower($s); ## lower-case. 4 $s = strip_tags($s); ## remove HTML tags. 5 $s = preg_replace('!&[^;\s]+;!','',$s); ## remove HTML entities. 6 $s = preg_replace('![^\w\s.]!','',$s); ## remove non-word/space/period chars. 7 $s = preg_replace('!\s+!','-',$s); ## change space chars to dashes. 8 return $s; 9 } 10 11 function convert_high_ascii($s) { 12 $HighASCII = array( 13 "!\xc0!" => 'A', # A` 14 "!\xe0!" => 'a', # a` 15 "!\xc1!" => 'A', # A' 16 "!\xe1!" => 'a', # a' 17 "!\xc2!" => 'A', # A^ 18 "!\xe2!" => 'a', # a^ 19 "!\xc4!" => 'Ae', # A: 20 "!\xe4!" => 'ae', # a: 21 "!\xc3!" => 'A', # A~ 22 "!\xe3!" => 'a', # a~ 23 "!\xc8!" => 'E', # E` 24 "!\xe8!" => 'e', # e` 25 "!\xc9!" => 'E', # E' 26 "!\xe9!" => 'e', # e' 27 "!\xca!" => 'E', # E^ 28 "!\xea!" => 'e', # e^ 29 "!\xcb!" => 'Ee', # E: 30 "!\xeb!" => 'ee', # e: 31 "!\xcc!" => 'I', # I` 32 "!\xec!" => 'i', # i` 33 "!\xcd!" => 'I', # I' 34 "!\xed!" => 'i', # i' 35 "!\xce!" => 'I', # I^ 36 "!\xee!" => 'i', # i^ 37 "!\xcf!" => 'Ie', # I: 38 "!\xef!" => 'ie', # i: 39 "!\xd2!" => 'O', # O` 40 "!\xf2!" => 'o', # o` 41 "!\xd3!" => 'O', # O' 42 "!\xf3!" => 'o', # o' 43 "!\xd4!" => 'O', # O^ 44 "!\xf4!" => 'o', # o^ 45 "!\xd6!" => 'Oe', # O: 46 "!\xf6!" => 'oe', # o: 47 "!\xd5!" => 'O', # O~ 48 "!\xf5!" => 'o', # o~ 49 "!\xd8!" => 'Oe', # O/ 50 "!\xf8!" => 'oe', # o/ 51 "!\xd9!" => 'U', # U` 52 "!\xf9!" => 'u', # u` 53 "!\xda!" => 'U', # U' 54 "!\xfa!" => 'u', # u' 55 "!\xdb!" => 'U', # U^ 56 "!\xfb!" => 'u', # u^ 57 "!\xdc!" => 'Ue', # U: 58 "!\xfc!" => 'ue', # u: 59 "!\xc7!" => 'C', # ,C 60 "!\xe7!" => 'c', # ,c 61 "!\xd1!" => 'N', # N~ 62 "!\xf1!" => 'n', # n~ 63 "!\xdf!" => 'ss' 64 ); 65 $find = array_keys($HighASCII); 66 $replace = array_values($HighASCII); 67 $s = preg_replace($find,$replace,$s); 68 return $s; 69 }
