paging_product.php

<?php
// the page where this paging is used
$page_dom = "index.php";
 
echo "<ul class=\"pagination\">";
 
// button for first page
if($page>1){
    echo "<li><a href='{$page_dom}' title='Go to the first page.'>";
        echo "<<";
    echo "</a></li>";
}
 
// count all products in the database to calculate total pages
$total_rows = $product->countAll();
$total_pages = ceil($total_rows / $records_per_page);
 
// range of links to show
$range = 2;
 
// display links to 'range of pages' around 'current page'
$initial_num = $page - $range;
$condition_limit_num = ($page + $range)  + 1;
 
for ($x=$initial_num; $x<$condition_limit_num; $x++) {
 
    // be sure '$x is greater than 0' AND 'less than or equal to the $total_pages'
    if (($x > 0) && ($x <= $total_pages)) {
 
        // current page
        if ($x == $page) {
            echo "<li class='active'><a href=\"#\">$x <span class=\"sr-only\">(current)</span></a></li>";
        }
 
        // not current page
        else {
            echo "<li><a href='{$page_dom}?page=$x'>$x</a></li>";
        }
    }
}
 
// button for last page
if($page<$total_pages){
    echo "<li><a href='" .$page_dom . "?page={$total_pages}' title='Last page is {$total_pages}.'>";
        echo ">>";
    echo "</a></li>";
}
 
echo "</ul>";
?>