Pagenation using php class

Pagenation using php class

<?php
class paginate{
var $current;
var $rows;
var $start_row;
var $total_data;
 function paginate($current_page,$totaldata,$rows_page = 10){
  $this->rows = $rows_page;
  $this->total_data = $totaldata;
  if($current_page < 1 or $current_page > $this->getTotalPage()){
   $this->current = 1;
  }
  else{
   $this->current = $current_page;
  }
 }
 function getTotalPage(){
  $total = ceil($this->total_data / $this->rows);
  return $total;
 }
 function getLimit(){
  if($this->current <= 1){
   $this->start_row = 0;
  }
  else{
   $this->start_row = $this->rows*($this->current-1);
  }
  return ' LIMIT '.$this->start_row.','.$this->rows;
 }
 function getNext(){
  if($this->current < $this->getTotalPage()){
   return $this->current + 1;
  }
 }
 function getPrevious(){
  if($this->current > 1){
   return $this->current - 1;
  }
 }
 function getPages(){
  $first = false; $last = false;
  if($this->getTotalPage() == 0){
   return false;
  }
  elseif($this->getTotalPage() > 10){
   for($i=1; $i<=$this->getTotalPage();$i++){
    if($i == $this->current){
     $page[] = array(
      'link' => false,
      'page' => $i
     );
    }
    elseif($i < $this->current-3 and $i > 3 and $i < $this->current+5 ){
     if(!$first){
      $page[] = array(
       'link' => false,
       'page' => '...',
      );
     }
     $first = true;
    }
    elseif($i < $this->getTotalPage()-3 and $i > $this->current+5){
     if(!$last){
      $page[] = array(
       'link' => false,
       'page' => '...',
      );
     }
     $last = true;
    }
    else{
     $page[] = array(
      'link' => true,
      'page' => $i
     );
    }
   }
  }
  else{
   for($i=1; $i<= $this->getTotalPage();$i++){
    if($i == $this->current){
     $page[] = array(
      'link' => false,
      'page' => $i
     );
    }
    else{
     $page[] = array(
      'link' => true,
      'page' => $i
     );
    }
   }
  }
  return $page;
 }
 function navigation($url=null,$attr=array()){
  $parm = '';
  if(is_array($attr)){
   foreach($attr as $name => $val){
    $parm .= ' '.$name.'="'.$val.'"';
   }
  }
  $nav = null;
  if($this->getPrevious()){
   $nav .= '<a href="'.$url.'&page='.$this->getPrevious().'" '.$parm.'>Previous</a> | ';
  }
  if($this->getPages()){
   foreach($this->getPages() as $name => $val){
    if($val['page'] != 1){
     $nav .= ', ';
    }
    if($val['link']){
     $nav .= '<a href="'.$url.'&page='.$val['page'].'" '.$parm.'>'.$val['page'].'</a>';
    }
    else{
     $nav .= '<b>'.$val['page'].'</b>';
    }
   }
  }
  if($this->getNext()){
   $nav .= ' | <a href="'.$url.'&page='.$this->getNext().'" '.$parm.'>Next</a>';
  }
  return $nav;
 }
}


/** example **/
if(isset($_GET['page'])){
 $page = $_GET['page'];
}
else{
 $page = 1;
}
$totaldata = 200;
$row_per_page = 10;
$paginate = new paginate($page,$totaldata,$row_per_page);

echo 'Limit for Query: SELECT * FROM `table`'.$paginate->getLimit();
echo '<br/>';
echo 'Current Page: '.$paginate->current;
echo '<br/>';
echo 'Pages Navigation: '.$paginate->navigation('index.php?',array('id' => 'page'));
echo '<br/>';
echo 'Total Page: '.$paginate->getTotalPage();
?>