URL apdribimas iš turimo html

URL apdribimas iš turimo html
prepare_url($str, $len=0);





function prepare_url($str, $len=0) {

  // depends on str_stop, normalize

  //pasalinam html tagus, nbsp
  $str = trim(strip_tags(str_replace('</',' </',html_entity_decode ($str, ENT_QUOTES, 'UTF-8')))  );
  
  //sumazinam keliagubua tuscia vieta
  $str = preg_replace('/\s\s+/', ' ', $str);
  
  //normalizuojam raides
  $str = normalize($str);
  
  //paliekam tik lotyniskus rasmenis 
  $str = preg_replace("/[^a-zA-Z0-9_-\s]/", '', $str);
  
  //sumazinam keliagubua tuscia vieta
  $str = preg_replace('/\s\s+/', ' ', $str);
  
  //jei prase truminti trumpiname
  if ($len>0) $str = trim(str_stop($str, 64, ''));
  
  //tarpus verciam bruksneliais
  $str=trim(str_replace(' ', '-', $str));
  
  //is galu pasalinam bruksnelius
  $str = trim($str,'-');

  
  // mazasias, saugu url
  return urlencode(strtolower( $str  )); 
  
}

function normalize ($string) {
    $table = array(
        'Š'=>'S', 'š'=>'s', 'Đ'=>'Dj', 'đ'=>'dj', 'Ž'=>'Z', 'ž'=>'z', 'Č'=>'C', 'č'=>'c', 'Ć'=>'C', 'ć'=>'c', '&scaron;'=>'s',
        'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', 'Å'=>'A', 'Æ'=>'A', 'Ç'=>'C', 'È'=>'E', 'É'=>'E',
        'Ê'=>'E', 'Ë'=>'E', 'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'Ñ'=>'N', 'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O',
        'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ù'=>'U', 'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ý'=>'Y', 'Þ'=>'B', 'ß'=>'Ss',
        'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c', 'è'=>'e', 'é'=>'e',
        'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'í'=>'i', 'î'=>'i', 'į'=>'i', 'Į'=>'I', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o',
        'ô'=>'o', 'õ'=>'o', 'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ü'=>'u', 'ý'=>'y', 'ý'=>'y', 'þ'=>'b',
        'ÿ'=>'y', 'Ŕ'=>'R', 'ŕ'=>'r', 'ū'=>'u', 'Ū'=>'Ū', 'ų'=>'u', 'Ų'=>'U', 'ė'=>'e', 'Ė'=>'E', 'Ą'=>'A', 'ą'=>'a'
    );
   
    return strtr($string, $table);
}

function str_stop($string, $max_length, $more='...', $e=' '){
    if (strlen($string) > $max_length){
        $string = substr($string, 0, $max_length);
        $pos = strrpos($string, $e);
        if($pos === false) {
               return substr($string, 0, $max_length).$more;
           }
        return substr($string, 0, $pos).$more;
    }else{
        return $string;
    }
}