Give me an array, I will show it with paging

<?php
$arr = array();
for ($i = 1; $i <= 99; $i++) {
    $name = md5($i);
    $person = array(
        "id" => $i,
        "name" => $name,
        "location" => "Viet Nam"
    );
    $key = $name;
    $arr[$key] = $person;
}

krsort($arr);

// Số bản ghi
$total = count($arr);
$PAGE_SIZE = 100;
// Số trang
$TAIL_PAGE = ceil($total / $PAGE_SIZE);


$page = (!isset($_GET["page"])) ? 1 : $_GET["page"];
if ($page < 1 || $page > $TAIL_PAGE) $page = 1;

$HEAD = ($page - 1) * $PAGE_SIZE + 1;
$TAIL = $HEAD + $PAGE_SIZE - 1;
if ($TAIL > $total) $TAIL = $total;

$arr = array_slice($arr, $HEAD - 1, $PAGE_SIZE);

echo "Total: $total records ~ $TAIL_PAGE pages.<br />";
echo "Viewing: page $page ~ record $HEAD to $TAIL<br />";

echo '<table border="1">';
echo '<tr><td>ID</td><td>Name</td><td>Location</td></tr>';
foreach ($arr as $key => $person) {
    $id = $person["id"];
    $name = $person["name"];
    $location = $person["location"];
    echo '<tr><td>' . $id . '</td><td>' . $name . '</td><td>' . $location . '</td></tr>';
}
echo '</table>';

$query = $_SERVER["QUERY_STRING"];
$query = preg_replace("/[&]?page=[0-9]*&?/", "", $query);
if (empty($query)) {

} else {
    $query .= "&";
}
if ($page > 1)
    echo '<a href="?' . $query . 'page=' . ($page - 1) . '">PREVIOUS</a>     ';
if ($page < $TAIL_PAGE) {
    echo '<a href="?' . $query . 'page=' . ($page + 1) . '">NEXT</a>';
}
?>