Number of page numbers for circular paging

$page = 1;

$total = 20;

 

$prevs = $page - 4;

if($prevs <= 0) {

$prevs = 1;

}

$next = $page + 4;

if($next > $total) {

$next = $total;

}

for($i = $prevs; $i <= $page - 1; $i++) {

echo $i."rn";

}

echo '['.$page.']'."rn";

for($i = $page + 1; $i <= $next; $i++) {

echo $i."rn";

}