Wordpress- WordPress Post Pagination without plugin

STEP 1. Add the following function to your functions.php file:

 
 
function pagination($pages = '', $range = 2)
{  
     $showitems = ($range * 2)+1;  

     global $paged;
     if(empty($paged)) $paged = 1;

     if($pages == '')
     {
         global $wp_query;
         $pages = $wp_query->max_num_pages;
         if(!$pages)
         {
             $pages = 1;
         }
     }   

     if(1 != $pages)
     {
         echo "
";
         if($paged > 2 && $paged > $range+1 && $showitems < $pages) echo "«";
         if($paged > 1 && $showitems < $pages) echo "‹";

         for ($i=1; $i <= $pages; $i++)
         {
             if (1 != $pages &&( !($i >= $paged+$range+1 || $i <= $paged-$range-1) || $pages <= $showitems ))
             {
                 echo ($paged == $i)? "".$i."":"".$i."";
             }
         }

         if ($paged < $pages && $showitems < $pages) echo "›";  
         if ($paged < $pages-1 &&  $paged+$range-1 < $pages && $showitems < $pages) echo "»";
         echo "
\n";
     }
}

STEP 2. To style it, add the following to your stylesheet (typically style.css).

.pagination {
 clear:both;
 padding:20px 0;
 position:relative;
 font-size:11px;
 line-height:13px;
}
.pagination span, .pagination a {
 display:block;
 float:left;
 margin: 2px 2px 2px 0;
 padding:6px 9px 5px 9px;
 text-decoration:none;
 width:auto;
 color:#fff;
 background: #555;
}
.pagination a:hover{
 color:#fff;
 background: #3279BB;
}
.pagination .current{
 padding:6px 9px 5px 9px;
 background: #3279BB;
 color:#fff;
}

STEP 3: Final step, Put in your template file:

$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$arg= array('post_type' => 'post-type',
   'taxonomy' => 'texonomy-slug',
   'term'=> 'term-slug',
   'paged' => $paged,
   'posts_per_page' => 5,
   'orderby' => 'date',
   'post_status'=>'publish'                                                                       
     );
$loop = new WP_Query($arg);
?>
<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>
 
<?php endwhile; ?>

<?php if (function_exists("pagination")) {
    pagination($loop->max_num_pages);
}