在 PHP 中分页以显示 123..7 而不是 1234567

好吧，我有一个类分页

<?php
class Pagination {
  public $current_page;
  public $per_page;
  public $total_count;
  public function __construct($page=1, $per_page=20, $total_count=0){
    $this->current_page = (int)$page;
    $this->per_page = (int)$per_page;
    $this->total_count = (int)$total_count;
  }
  public function offset() {
    return ($this->current_page - 1) * $this->per_page;
  }
  public function total_pages() {
    return ceil($this->total_count/$this->per_page);
    }
  public function previous_page() {
    return $this->current_page - 1;
  }
  public function next_page() {
    return $this->current_page + 1;
  }
    public function has_previous_page() {
        return $this->previous_page() >= 1 ? true : false;
    }
    public function has_next_page() {
        return $this->next_page() <= $this->total_pages() ? true : false;
    }

}
?>

这是我如何在索引中使用它.php

<?php
$page = !empty($_GET['page']) ? (int)$_GET['page'] : 1;
$per_page = 4;
$total_count = class::count_all();
$pagination = new Pagination($page, $per_page, $total_count);
$sql = "SELECT * FROM tablename ";
$sql .= "LIMIT {$per_page} ";
$sql .= "OFFSET {$pagination -> offset()}";
?>
<?php foreach($variables as $variable):
?>
<?php endforeach;?>
    <?php
    if ($pagination -> total_pages() > 1) {
        if ($pagination -> has_previous_page()) {
            echo "<a href='"index.php?page=";
            echo $pagination -> previous_page();
            echo "'">&laquo; Previous</a> ";
        }
        for ($i = 1; $i <= $pagination -> total_pages(); $i++) {
            if ($i == $page) {
                echo " <span class='"selected'">{$i}</span> ";
            } else {
                echo " <a href='"index.php?page={$i}'">{$i}</a> ";
            }
        }
        if ($pagination -> has_next_page()) {
            echo " <a href='"index.php?page=";
            echo $pagination -> next_page();
            echo "'">Next &raquo;</a> ";
        }
    }
?>

我的问题是，如果有很多页面我希望它放 1 2 3 .......10而不是 1 2 3 4 5 6 7 8 9 10

提前感谢，我真的很抱歉像这样惹恼你们所有人