pagination.php

<?php
    function pagination($current_page, $total_pages, $page){ ?>

    <div class="container">
        <div class="row">
            <div class="col-12" style="text-align:center; display:flex; justify-content:center;">
                <nav aria-label="navigation">
                    <ul class="pagination">
                        
                    <?php if($total_pages>=1 && $current_page <= $total_pages):

                        if($current_page>=2):?>
                            <li class="page-item"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=$current_page-1?>"> Nazaj </a></li>
                        <?php endif;

                        if($current_page == 1): ?>
                            <li class="page-item active"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=1?>"> 1 </a></li>
                        <?php else: ?>
                            <li class="page-item"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=1?>"> 1 </a></li>
                        <?php endif;

                        $i = max(2, $current_page-2);
                        if($i > 2): ?>
                            <li class="page-item disabled"><a class="page-link" href="#"> ... </a></li>
                        <?php endif;

                        for(; $i<min($current_page+3, $total_pages); $i++): 
                            if($i == $current_page): ?>
                                <li class="page-item active"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=$i?>"><?=$i?></a></li>
                            <?php else: ?>
                                <li class="page-item"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=$i?>"><?=$i?></a></li>
                            <?php endif; 
                        endfor;

                        if($i != $total_pages): ?>
                            <li class="page-item disabled"><a class="page-link" href="#"> ... </a></li>
                        <?php endif;

                        if($current_page == $total_pages): ?>
                            <li class="page-item active"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=$total_pages?>"><?=$total_pages?></a></li>
                        <?php else: ?>
                            <li class="page-item"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=$total_pages?>"><?=$total_pages?></a></li>
                        <?php endif;
                        
                        if($current_page < $total_pages): ?>
                            <li class="page-item"><a class="page-link" href="./index.php?page=<?=$page?>&p=<?=$current_page+1?>"> Naprej </a></li>
                        <?php endif; ?>
                    <?php endif; ?>   
                    </ul><!-- pagination -->
                </nav><!-- navigation -->
            </div> <!-- col-12 pagnation -->
        </div><!-- row -->
    </div><!-- container -->
    
<?php } ?>