reasonableframework/helper/paginate.php

<?php
/**
 * @file paginate.php
 * @date 2018-01-01
 * @author Go Namhyeon <gnh1201@gmail.com>
 * @brief Page navigation helper for ReasonableFramework
 * @cvs http://github.com/gnh1201/reasonableframework
 */

if(!function_exists('get_paginate')) {
	function get_paginate($item_per_page, $current_page, $total_records, $total_pages, $page_url, $qry='') {
		$pagination = '';
		if($total_pages > 0 && $total_pages != 1 && $current_page <= $total_pages){ //verify total pages and current page number
			$pagination .= '<ul class="pagination justify-content-end">';
		   
			$right_links    = $current_page + 3;
			$previous       = $current_page - 3; //previous link
			$next           = $current_page + 1; //next link
			$first_link     = true; //boolean var to decide our first link
			
			// prevent minus page number
			if($previous < 0) {
				$previous = 1;
			}
			
			$qry_url = '';
			if(!empty($qry)) {
				$qry_url = '?' . $qry;
			}

			if($current_page > 1){
				$previous_link = ($previous==0)?1:$previous;
				$pagination .= '<li class="page-item first"><a class="page-link" href="'.$page_url.'1'.$qry_url.'" title="First">&laquo;</a></li>'; //first link
				$pagination .= '<li class="page-item"><a class="page-link" href="'.$page_url.$previous_link.$qry_url.'" title="Previous">&lt;</a></li>'; //previous link
					for($i = ($current_page-2); $i < $current_page; $i++){ //Create left-hand side links
						if($i > 0){
							$pagination .= '<li class="page-item"><a class="page-link" href="'.$page_url.$i.$qry_url.'">'.$i.'</a></li>';
						}
					}  
				$first_link = false; //set first link to false
			}

			if($first_link){ //if current active page is first link
				$pagination .= '<li class="page-item first active"><a class="page-link" href="#">'.$current_page.'</a></li>';
			}elseif($current_page == $total_pages){ //if it's the last active link
				$pagination .= '<li class="page-item last active"><a class="page-link" href="#">'.$current_page.'</a></li>';
			}else{ //regular current link
				$pagination .= '<li class="page-item active"><a class="page-link" href="#">'.$current_page.'</a></li>';
			}
				   
			for($i = $current_page+1; $i < $right_links ; $i++){ //create right-hand side links
				if($i<=$total_pages){
					$pagination .= '<li class="page-item"><a class="page-link" href="'.$page_url.$i.$qry_url.'">'.$i.'</a></li>';
				}
			}
			if($current_page < $total_pages){
					$next_link = ($i > $total_pages)? $total_pages : $i;
					$pagination .= '<li class="page-item"><a class="page-link" href="'.$page_url.$next_link.$qry_url.'" >&gt;</a></li>'; //next link
					$pagination .= '<li class="page-item last"><a class="page-link" href="'.$page_url.$total_pages.$qry_url.'" title="Last">&raquo;</a></li>'; //last link
			}
		   
			$pagination .= '</ul>';
		}

		return $pagination; //return pagination links
	}
}