Library

pagerange

page_range

SYNOPSIS

page_range($page, $npages, $offset=1)

DESCRIPTION

page_range returns an array of page numbers to display in a page number selector.

The current page is $page, the total number of pages is $npages, and $offset specifies the number of page numbers displayed before and after the current page.

EXAMPLE

php > require 'library/pagerange.php';
php > print_r(page_range(8, 20));
Array
(
    [0] => 1
    [1] => 7
    [2] => 8
    [3] => 9
    [4] => 20
)

CODE

function page_range($page, $npages, $offset=1) {
$range=2*$offset+1;
if ($npages <= $range+$offset) {
$pagenums=range(1, $npages);
}
else if (($page - $offset) <= 2) {
$pagenums=array_merge(range(1, $range+1), array($npages));
}
else if (($page + $offset) >= ($npages-1)) {
$pagenums=array_merge(array(1), range($npages-$range, $npages));
}
else {
$pagenums=array_merge(array(1), range($page-$offset, $page+$offset), array($npages));
}
return $pagenums;
}

izend.org