pagination - 10 pages per page

Question

I have a pagination script that displays a list of all pages like so:
prev [1][2][3][4][5][6][7][8][9][10][11][12][13][14] next
But I would like to only

Answer 1

I've just been looking for an answer to the same original question, and couldn't find it, so this is what I came up with. I hope someone else finds it useful.

$totalPages  = 20;
$currentPage = 1;

if ($totalPages <= 10) {
    $start = 1;
    $end   = $totalPages;
} else {
    $start = max(1, ($currentPage - 4));
    $end   = min($totalPages, ($currentPage + 5));

    if ($start === 1) {
        $end = 10;
    } elseif ($end === $totalPages) {
        $start = ($totalPages - 9);
    }
}

for ($page = $start; $page <= $end; $page++) {
    echo '[' . $page . ']';
}

Results:

$currentPage = 1;  // [1][2][3][4][5][6][7][8][9][10]
$currentPage = 4;  // [1][2][3][4][5][6][7][8][9][10]
$currentPage = 10; // [6][7][8][9][10][11][12][13][14][15]
$currentPage = 17; // [11][12][13][14][15][16][17][18][19][20]
$currentPage = 20; // [11][12][13][14][15][16][17][18][19][20]