<?php
function navigationbar($start_number = 0, $items_per_page = 50, $count) {
   // Creates a navigation bar
   $current_page = $_SERVER["PHP_SELF"];

    if (($start_number < 0) || (! is_numeric($start_number))) {
        $start_number = 0;
    }

    $navbar = "";
    $prev_navbar = "";
    $next_navbar = "";

    if ($count > $items_per_page) {
        $nav_count = 0;
        $page_count  = 1;
        $nav_passed = false;

        while ($nav_count < $count) {
            // Are we at the current page position?
            if (($start_number <= $nav_count) && ($nav_passed != true)) {
                $navbar .= "<b><a href=\"$current_page?start=$nav_count\">
[$page_count] </a></b>";
                $nav_passed = true;
                // Do we need a "prev" button?
                if ($start_number != 0) {
                    $prevnumber = $nav_count - $items_per_page;
                    if ($prevnumber < 1) {
                        $prevnumber = 0;
                    }
                    $prev_navbar = "<a href=\"$current_page?start=$prevnumber\
"> &lt;&lt;Prev - </a>";
                }

                $nextnumber = $items_per_page + $nav_count;

                // Do we need a "next" button?
                if ($nextnumber < $count) {
                    $next_navbar = "<a href=\"
$current_page?start=$nextnumber\"> - Next&gt;&gt; </a><br>";
                }
            } else {
                // Print normally.
                $navbar .= "<a href=\"$current_page?start=$nav_count\">
[$page_count] </a>";
            }

            $nav_count += $items_per_page;
            $page_count++;
        }

        $navbar = $prev_navbar . $navbar . $next_navbar;
        return $navbar;
    }
}

?>