Pagination series three

Pagination category three

class Page {
 private $total; //Query the total number of records of all data
 private $page; //The current page
 private $num; //Display the records of each page Number
 private $pageNum; //How many pages in total? private $offset; //Get the starting offset number of the record from the database

 function __construct($total, $page=1, $num=5) {
 $this ->total=$total;
 $this->page=$page;
 $this->num=$num;
 $this->pageNum=$this->getPageNum();
 $this ->offset=$this->getOffset();
 }

 private function getPageNum(){
 return ceil($this->total/$this->num);
 }

 private function getNextPage () {
 if($this->page==$this->pageNum)
 return false;
 else
 return $this->page+1;
 }

 private function getPrevPage() {
 if ($this->page==1)
 return false;
 else
 return $this->page-1;
 }
 //Offset of database query
 private function getOffset() {
 return ($ this->page-1)*$this->num;
 }
 //The number of records at the beginning of the current page
 private function getStartNum() {
 if($this->total==0)
 return 0 ;
 else
 return $this->offset+1;
 }
 //The number of records at the end of the current page
 private function getEndNum() {
 return min($this->offset+$this->num,$ this->total);
 }

 public function getPageInfo(){
 $pageInfo=array(
 "row_total" => $this->total,
 "row_num" => $this->num ,
 "page_num" => $this->getPageNum(),
 "current_page" => $this->page,
 "row_offset" => $this->getOffset(),
 "next_page " => $this->getNextPage(),
 "prev_page" => $this->getPrevPage(),
 "page_start" => $this->getStartNum(),
 "page_end" = > $this->getEndNum()
 );
 return $pageInfo;
 }
}
?>