how to pageinator link creation - php

Question

I am trying to create a dynamic page links created based on the number of rows in a mysql table. I would like to display 10 results per page and wish to have the php script create links to additional pages.
So I was thinking of using the num_rows and dividing it by 10 however if I have 53 rows the return would be 5.3 where as I would need 6 pages and not 5. I am thinking of using the round function and looping it through a for I statement until $pages > $rows_rounded. And every 10 rows add a link to pages($i) Is this the best method to acheive this or there an alternative simpler route to take?

Answer 1

pagenator class I made. getCurrentPages() returns all the pages you should be displaying in an array. so if you are on page one, and you want to display a total of 9 pages, you would get an array 1-9. if you were on page 10 however, your would get back an array 6-14. if there are 20 total pages and you are on page 20, you would get back an array 11-20.
<?php
class Lev_Pagenator {
private $recordsPerPage;
private $currentPage;
private $numberOfTotalRecords;
private $lastPage = null;
public function __construct($current_page, $number_of_total_records, $records_per_page = 25) {
$this->currentPage = $current_page;
$this->numberOfTotalRecords = $number_of_total_records;
$this->recordsPerPage = $records_per_page;
}
public function getCurrentStartIndex() {
return ($this->currentPage - 1) * $this->recordsPerPage;
}
public function getCurrentPages($number_of_pages_to_display = 9) {
$start_page = $this->currentPage - floor($number_of_pages_to_display / 2);
if ($start_page < 1) $start_page = 1;
$last_page = $this->getLastPage();
$pages = array($start_page);
for ($i = 1; $i < $number_of_pages_to_display; $i++) {
$temp_page = $start_page + $i;
if ($temp_page <= $last_page) {
$pages[] = $temp_page;
} else {
break;
}
}
return $pages;
}
public function getPreviousPage() {
if ($this->currentPage === 1) return false;
return $this->currentPage - 1;
}
public function getNextPage() {
if ($this->currentPage === $this->getLastPage) return false;
return $this->currentPage + 1;
}
public function getLastPage() {
if ($this->lastPage === null) $this->lastPage = ceil($this->numberOfTotalRecords / $this->recordsPerPage);
return $this->lastPage;
}
}
?>
EDIT (USAGE):
<?php
$pagenator = new Lev_Pagenator($current_page, $number_of_total_records, $records_per_page);
$pages_array = $pagenator->getCurrentPages($number_of_pages_to_display);
?>

Answer 2

The idea of a for loop sounds like a good one, you would use something like:
$rows_rounded = ceil(mysql_num_rows($result) / 10);
for($x = 1; $x <= $rows_rounded; $x++){
echo 'Page '.$x.'';
}
But you need to consider detecting the current page, so if, for example, the current page was 3, it might be a good idea to test for that in your for loop and if echoing the 3rd link maybe add some extra class to enable you to style it.