php nav number

nav-number.php

<?php
$max_num_pages = $results->max_num_pages; // total max pages
$pg = $pg; // current page

$min_nav = $pg-2;
if ( $min_nav < 1 ) :
    $min_nav = 1;
endif;

$max_nav = $pg+2;
if ( $max_nav > $max_num_pages ) :
    $max_nav = $max_num_pages;
endif;
?>

<?php
if ( $max_num_pages > 1 ) :
?>
    <nav class="sppob-nav">
        <?php
        if ( $pg > 1 ) :
        ?>
            <a href="<?php echo '?pg=1'; ?>" title="<?php _e('First'); ?>"><?php _e('<<'); ?></a>
        <?php
        endif;
        ?>

        <?php
        if ( $min_nav != $pg ) :
        ?>
            <a href="<?php echo '?pg='.($pg-1); ?>" title="<?php _e('Prev'); ?>"><?php _e('<'); ?></a>
        <?php
        endif;
        ?>

        <?php
        for ( $i = $min_nav; $i <= $max_nav; $i++ ) : 
        ?>
            <?php
            if ( $i == $pg ) :
                $active = 'active';
            else:
                $active = '';
            endif;
            ?>
            <a class="<?php echo $active; ?>" href="<?php echo '?pg='.$i; ?>"><?php echo $i; ?></a>
        <?php
        endfor;
        ?>

        <?php
        if ( $max_nav != $pg ) :
        ?>
            <a href="<?php echo '?pg='.($pg+1); ?>" title="<?php _e('Next'); ?>"><?php _e('>'); ?></a>
        <?php
        endif;
        ?>

        <?php
        if ( $pg < $max_num_pages ) :
        ?>
            <a href="<?php echo '?pg='.$max_num_pages; ?>" title="<?php _e('Last'); ?>"><?php _e('>>'); ?></a>
        <?php
        endif;
        ?>
    </nav>
<?php
endif;
?>

style.css

/* 
nav
*/
.sppob-nav {
    text-align: center;
    margin-top: 30px;
}
.sppob-nav a {
    background: #242424 !important;
    display: inline-block;
    padding: 6px 12px 5px;
    margin: 5px;
    border: 1px solid #2F2F2F;
    font-family: "Poppins", Sans-serif;
    font-size: 14px;
    font-weight: normal;
    line-height: 1.9;
}
.sppob-nav a:hover,
.sppob-nav a.active {
    color: #E00914 !important;
    font-weight: bold;
    border: 1px solid #2F2F2F;
}